Answer:
if the prices get to cheap she won't have enough money to keep making new necklaces and she won't be able to produce them.
to mess with an opponents thing. I.e. I am in a science fair and i go unplug my opponent's science project. that is sabotage
A. Epstein is studying why some people like to play sports and others do not
Explanation: I Already took it
Yes it is a metaphor because he does not literally have a key to her heart. It is just figurative speaking.
This does not sound right