Question

Which is equal to {x|x is a letter from the word “book”}
a.{b, o, k}
b.{1, 2, 3, 4}
c.{b, o, o, k}
d.{2, 3, 4}

Answer 1

Answer:

{b, o, o, k} is equal to {x|x is a letter from the word “book”}.