Considering the first description, we can see that all of the options are suitable.
When reading the second description, we can see that only the second and the third options fit the description because they both have the first term which is 2a
Looking at our final description, we can see that the second one suit it as well since the description said that the second term was the quotient of b and 4, or the result when we divide b by 4, and in this case we can write it as a fraction: b/4.
Each one of them are the sum of two terms. If the first term is the product of 2 and a, it will be 2a so A and D are out. If the second term is the quotient of b and 4 it will be b/4 so the answer is 2a + b/4
