Which of the Following Sentences Expresses the Idea That the Economy

Which of the following sentences expresses the idea that the economy will improve by November without asserting it?

A) The president will be reelected, and the economy will improve by November.
B) The president will be reelected, but the economy will improve by November.
C) The president will be reelected, so the economy will improve by November.
D) The reelection of the president depends on whether the economy will improve by November.
E) The reelection of the president will occur in November, for the economy will improve by November.