Question

I just need the is A B C or D

Answer 1

Answer: Option 3

Explanation:

Option 1: Here, the second identity is being used with
`a=20, b=2`.

Option 2: Here, the first identity is being used with
`a=30, b=4`.

Option 3: This is wrong.

Option 4: Here, the second identity is being used with
`a=200, b=5`.