Robin Purchased Shares of a Machine Tool Company and Shares

Multiple Choice

Robin purchased shares of a machine tool company and shares of an airline company. Let E be the event that the shares of the machine tool company increase in value over the next 5 months, and let F be the event that the shares of the airline company increase in value over the next 5 months. Using the symbols ∪, ∩ and ^c describe the event that the shares of only one of the two companies increase in value.

A) (E ∩ F^c) ∪ (E^c ∩ F)
B) E ∪ F
C) E^c ∩ F^c
D) Ø