Consider a JSON object that represents a student's information. The object contains the student's ID$,$ name, department, and total credits. Given this JSON object:

$\{$

$"$ID$"$: $"12345",$

"name": "John Doe",

"dept$\_$name": "Computer Science",

"tot$\_$cred": $75$

$\}$

Which of the following statements accurately describes a key$-$value pair in this JSON object?

Group of answer choices

"John Doe" is a key that maps to the value "name".

"Computer Science" is a key that maps to the value "dept$\_$name".

"tot$\_$cred" is a key that maps to the value $75.$

The number $12345$ is a key that maps to the value $"$ID$".$