Option B
quantity 3x squared plus 10 end quantity over 2
Solution:
Given that quantity 6x squared plus 20 end quantity over 4
To find: simplify the given sentence
quantity 6x squared plus 20 end quantity over 4 means that
plus 20 over 4
Here the term "over" represents division
So the quantity 6x squared plus 20 end quantity over 4 is written mathematically as:

Let us simplify the above expression
Taking 2 as common term,

Thus the above expression is written as:
quantity 3x squared plus 10 end quantity over 2