Question $3$ options:

Convert each of the following decimal numbers to its corresponding $32-$bit signed hexadecimal number. Do not use any prefix or suffix in your answer. Additionally, please do not use any subscript to specify the base of the number in your answer:

$($a$)-3000$

Hexadecimal:

$($b$)300,000$

Hexadecimal:

$($c$)-3,000,000$

Hexadecimal:

$($d$)7777$

Hexadecimal: