What is the answer A,B,C,or D

Answer:
It's B
Step-by-step explanation:
45÷3=15
15×5=75 minutes
Answer:
B
Step-by-step explanation:
Do 15 divided by 3 and you get 1 km in 15 mins
Then for each choice multiply the km by 5 to see if the min. are correct...
15 x 5 is 75