Advice: Find this out. It will save you a lot of time worrying
about sections that don't count.
Here's how to find out:
They don't always give you a straight answer, so ask very directly if there
are any sections they don't look at as much as the others.
They may still be evasive and say, "Oh, just do your best on everything."
Ask again if any sections are more important to them than others (this is
the converse of the first way you asked and may get a more direct answer).
Many schools simply look at the combined GMAT score. If they don't seem
to understand what you're asking, you can assume they just look at the combined
score.
If you still haven't gotten a clear yes or no, you may get some clues when
you ask what scores they are looking for.
This brings us to the next question:
2. Do you know what scores your program is looking for?