Question: Job Satisfaction

Then that would be a problem :-)
However, answer C suggests that there are, indeed, Maltanian companies with over 10 employees.

Good question.

The key thing about the question is that we are looking for an answer choice that MUST be true.

From the passage, we only know that revenue sharing and onsite daycare DO increase Job Satisfaction (JS). However, we are also told that Maltania's JS is much lower than Finland's and Sweden's JS.

We might assume that this is due to the fact that Maltania seems to have fewer things that promote JS (i.e., revenue sharing and onsite daycare)

In answer choice B, we don't have any way of comparing JS when revenue sharing and onsite daycare are mandated by the LAW and when they are created voluntarily. We aren't given any information comparing JS in Finland and Sweden when revenue sharing and onsite daycare are the law and when they are created voluntarily.

Likewise, we aren't given any information comparing JS in Maltania when revenue sharing and onsite daycare are the law and when they are created voluntarily.

All we know is that JS is lower in Maltania. However, this could be the result of there being so little revenue sharing and onsite daycare in Maltania, rather than the fact that Maltania's revenue sharing and onsite daycare are created voluntarily.

The passage tells us that revenue sharing and onsite daycare DO increase Job Satisfaction (JS).

We're also told that revenue sharing and onsite daycare are rare in Maltania.

Answer choice C basically says that increasing revenue sharing and onsite daycare will lead to increased JS.

This is pretty much a restatement of a given premise.

The passage tells us that revenue sharing increases job satisfaction, but it doesn't tell us that revenue sharing is the ONLY THING that increases job satisfaction.

Here's an analogous example:
Applying organic fertilizer to an apple tree increases the apple size.
Which of the following can be inferred?

D) Apple trees with large apples typically have had organic fertilizer applied to them.

MUST this be true? No.
An apple tree might have large apples because the tree gets lots of water, or lots of sunshine. Or perhaps the tree is growing in rich soil. Or perhaps the tree got lot of NON-organic fertilizer, etc.

So, we really can't make any conclusions about whether organic fertilizer was applied to the tree.

The same applies to the original question; it's quite possible that other factors have caused high job satisfaction.

Does that help?