5. Michelle has two mobile network plans. In one plan, she pays a monthly charge of Php 350 plus Php 6 for every minute of call to other networks. In the other plan, she pays a monthly charge of Php 450 plus Php 4 for every minute of call to other networks. Last month, her monthly bills in both mobile networks are the same. What is the total call time to other networks did she make?
A. 50 minutes
C. 200 minutes
B. 100 minutes
D. 300 minutes hour​