"And you believe all this ?" asked Sriram, in surprise.
A. Sriram asked me in surprise if I believed all this.
B. Sriram asked me in disbelief if I was believing all this.
C. Surprised, Sriram asked me whether I believed all that.
D. Sriram was amazed that I believed all that.
Answer: Option C
Option C is correct....
A seems more appropriate