A College Charges $\$ 219$ Per Unit for Tuition $u$ Represent the Number of Units That a Student Is Taking

A college charges $\$ 219$ per unit for tuition. If we let $u$ represent the number of units that a student is taking, build a variable expression for the student's tuition.

A) $219 \div \mathrm{u}$
B) $219 u$
C) $u \div 219$
D) $219+u$