Respuesta :

Answer:

A. a double

Explanation:

The syntax of the function is:

type name( argument_1, argument_1,...... )

{  

    statement;

}

In the above syntax "type" define the return type of the function.

for example:

int count( int n);

so, it return the integer. Because the return type is 'int'.

In the question,

double compute speed(double distance);

Here, the return type is double. So, it return double.