Question $9(2\mathrm{.}43$ textbook page $54)$

Translate the following ASCII codes into strings of characters by interpreting each group of eight bits as an ASCII character. $($Show your work$)$

a$.x48656c6c6f21$

b$.x68454c4c4f21$

c$.x436f6d70757465727321$

d$,x4c432d32$