A single-bit bitmask is a bitstring where all the bits are 0 except for a single bit, which is 1. If that single bit is located at index i, we call the bitmask BITi. For example, BIT0 is equal to 1 and BIT1 is equal to 2 and BIT2 is equal to 4, and so on. If we intend to reset bits 10 and 20 of an integer, and we like to create a macro mask, what should go in the blank space below?.

#define NEW_MASK _____.
x = x & ~NEW_MASK;

A. (BIT10 | BIT20)
B. BIT10 | BIT20
C. BIT10 & BIT20
D. ~(BIT10 | BIT20)