It should be b. is correct
Explanation:
Bat:A nocturnal mammal capable of making flights; an implement with handle and solid surface used to it balls
The answer is:
"Last week I sent a tuner over to my parents’ apartment and had the piano reconditioned, for purely sentimental reasons.”
This is intrisic because she says, "purely for sentimental reasons" meaning she wasn't influenced by anything from the outside, this was something she did on her own based on how she personally felt. It was based on her emotions and her feelings. Hope this helps:)
