Observe the ENROLLMENT AND COURSE database:

ENROLLMENT

EmpID

EmpName

CourseID

$111$

Joe

AMG

$222$

Bob

AMG

$333$

Lisa

PMG

$444$

Sue

AMG

COURSE

CourseID

CourseName

AMG

Anger Management

PMG

Project Management

What will be the result of the following query?

SELECT count$(*)$ FROM enrollment

GROUP BY courseid;

number $1$

number $3$

numbers $3$ and $1$

number $4$

numbers $4,3,$ and $1$