Answer:
b) b - 2a + 3c
Explanation:
The given expression is

Let's factor out the numerator expression

Here 4a is a greatest common factor. So we can take it out and write the remaining terms in the parenthesis.

The given expression can be written as

We can cancel out 4a both in the numerator and in the denominator, we get
b - 2a + 3c