NL Hold Em $.5/$1 (6-Max)

Stack Sizes:

Everyone ($100)

Hero has [Ks Qs] on the BB. SB posts a blind of $0.50. Hero posts a blind of $1.00.

PREFLOP: UTG raises to $3.50, DB calls $3.50, SB calls, Hero ? 
 

Question 1: What is hero's best play?A) Hero raises to $7.00.
B) Hero calls $3.50.
C) Hero folds.
D) Hero raises to $17.5.