Consider two microprocessors having $8-$ and $16-$bit$-$wide external data buses, respectively. The two processors are idencical otherwise and their bus cycles take just as long. suppose all instructions and operands are one byte long. By what factor do the maximum data transfer rates differ?

a$)$ The $16-$bit bicroprocessor has twice the data transfer rate than $8-$bit microprocessor.

b$)$ The $8-$bit microprocessor has twice the data transfer rate than $16-$bit microprocessor.

c$)$ The $16-$bit microprocessor has same the data transfer rate as $8-$bit ricroprocessor.

d$)$ There is not enough information provided to calculate the difference in data rates.