i can't comment so someone else is going to have to answer
but they need the whole page to answer this question.
Answer:
The correct option is D.
Step-by-step explanation:
The given expression is

Difference of two squares property:

Using the above property, the given expression can be written as

Applying square we get


Therefore the correct option is D.
Answer:
25
Step-by-step explanation:
12 months in a year
From 31 January 2020 to 31 December 2020 = 12 months
From 31 January 2021 to 31 December 2021= 12 months
include final January = 1 month
12+12+1=25
Answer is HM. Hope this helps