Problem: Robert thought Randy was a player, because

My choice: Randy was seeing lots of different girls at the same time.

Problem: Joseph was far away from the winter holiday sale compared to William.

My choice: Joseph had to drive for a long time.

Problem: Joseph provided a very good childhood to Samuel, which means that

My choice: Samuel is a lucky child.

Problem: William but not Matthew ordered the avocado toast for breakfast because

My choice:
Matthew hates to eat vegetables.