What is instruction latency?

$($

a

$)$

$$It is the time required to execute a single instruction.

$($

b

$)$

$$It is the time required to execute an entire program or a code segment.

$($

c

$)$

$$It is the number of instructions completed per unit time.

$($

d

$)$

$$It is the memory footprint.

$($

e

$)$

$$It is the time you must wait for a program to start executing