Kartik takes 4 hours to travel from place X to place Y at the speed of 80 km/hr. He takes 1 hour to travel from place Y to place Z with 80% increased speed. What is the average speed from Place X to Z for the complete Journey?

A

82.6 km/hr

B

90.8 km/hr

C

92.8 km/hr

D

88.6 km/hr