In lines 29-34 Shylock gives his reason.
"Yes, to smell pork; to eat of the habitation which your prophet, the Nazarrite, conjured the devil onto! I will buy with you, sell with you talk with you, walk with you and so following; but I will not eat with you, nor pray with you."
Shylock's reasons are to do with his own religious beliefs.
Answer:
By, buy
Explanation:
Joys went to the shop by (beside) The dentists office to buy (purchase) Materials for her project.
I believe it is C
if not i am very sorry hope this helps