Use the Multiplication Principle to Solve the Problem $\mathrm{K}$
A) 1000
B) 78
C) 17,576
D) 456,976

Multiple Choice

Use the multiplication principle to solve the problem.
-How many different 4 -letter radio station call letters can be made if repeats are allowed and the first letter must be $\mathrm{K}$ .

A) 1000
B) 78
C) 17,576
D) 456,976