The expected workload of generating a collision is of the order of ____________ executions of Whirlpool.

The expected workload of generating a collision is of the order of ___

1.	The expected workload of generating a collision is of the order of ____________ executions of Whirlpool.
A.	2<sup>(n/2)</sup>
B.	2<sup>(n-1)</sup>
C.	2<sup>(n)</sup>
D.	2<sup>(2n)</sup>
Answer» B. 2<sup>(n-1)</sup>