Hi,

I've been studying to the GMAT on my own for the past month or so. Yesterday I took the first test just to see where I was and I got this question:

In Hungary, as in much of Eastern Europe, an overwhelming proportion of women work, many of which are in middle management and light industry.

The correct answer choice beings with as but I thought it had to start with like as I was taught that like is used to compare nouns and as is for verbs. But what is the rule about prepositions (in)?

Can anyone help with this issue?