She felt pressured to start playing the game because it was so popular.
Explanation:
The expression, "jump on the bandwagon," means to join in to a popular movement or activity, often with little thought, or just to be part of the group.
It is b) false that if Penelope had not mentioned the master's (Odysseus') feet to her servant Eurycleia, the evidence concerning Odysseus' return would not have been circumstantial.