Hello!
The degrees of comparison escalate as follows:
Positive
Comparative
Superlative
If you have three sentences as follows:
Henry is short.
David is shorter than Henry.
Thoreau is shortest of the three.
Short is the positive degree, shorter is the comparative degree, and shortest is the superlative degree.
In the sentence "Cheetahs are faster runners than lions" the adjective in question is faster. We know that its degree of comparison is comparative.
Answer:
A. comparative
