What is the exact number of bytes in system of memory that contains

$($

a

$)$

$6$

$4$

K bytes

$($

In Binary

$)$

$($

b

$)$

$3$

$2$

M bytes

$($

In Decimal

$)$

$($

c

$)$

$1$

$2$

$8$

M Bytes

$($

In Binary

$)$