Rank the DNA Sequences According to the Order in Which

Multiple Choice

Rank the DNA sequences according to the order in which they would denature as temperature is increased. i.e., the sequence that would be denatured at the lowest temperature would be ranked 1. For simplicity, only a single strand of each double helix is shown.
-AGTCGATCGTTTGC

A) 2
B) 4
C) 3
D) 1