What is Used During Sequence Alignments to Better Align Two

Question

What is used during sequence alignments to better align two sequences?
A) insertion of Gly residues
B) removal of $\alpha$-helical regions
C) insertion of gaps
D) removal of methionine and tryptophan due to their low prevalence in proteins
E) None of the answers is correct.

Accepted Answer

Insertion of gaps is a common technique used in sequence alignments to align two sequences more accurately by compensating for insertions and deletions that may have occurred over evolutionary time.