Which one of the following sentences has a number error?

Question

a) Claire paid $13,000 for her car at the used car dealer in Fremont.
b) Jeremy bought three binders, 12 binder dividers, 24 pens, 12 pencil, and five packets of lined paper for his first semester of college.
c) My little sister is 6 years old, and my oldest sister is 25 years old.
d) Austin borrowed $100.00 from Rebecca to buy his school books.

Answer 1

b;