Under which of the following conditions there will be no change in the reading frame of following mRNA?
5'AACAGCGGUGCUAUU 3'

Options

A. Deletion of GGU from `7^(th) , 8^(th)` and `9^(th)` positions
B. Insertion of G at `5^(th)` position
C. Delection of G from`5^(th)` position
D. Insertion of A and G at `4^(th)` and `5^(th)` position respectively

Answer

A

Explanation