Assume a cache of $2K$ blocks ( 1 block size = 4 words= 16 bytes) and $32-bit$ address. Assume this machine is byte addressable.
What is the bit length of each field in direct mapped?
$(A).\space 19,11,2$
$(B).\space 20,11,2$
$(C).\space 21,9,2$
$(D). \text{none of these}$