For a direct mapped cache design with $32-$bit address, the address is divided as follows: $-$ bits $0-3$ are used for the offset$-$ bits $4-9$ are used for the index $-$ bits $10-31$ are used for the tagWhat is the number of blocks in the RAM?Select one:a$.128$ Mega blockb. $64$ Mega blockc. $512$ Mega blockd. $32$ Mega blocke. $256$ Mega block