With no explanation, chose the best option from "A" or "B". John and his friend take a taxi together and his friend asks John to pay half the fare. John wants to reply to his friend about the taxi fare.

A: John says he'll pay half the cost of the taxi ride and his friend pays the rest.
B: John says his friend should pay the whole fare because it was their idea to take a taxi, so they reluctantly do so.
A.