Question

Given the two sets, which statement is true?

A = {1, 2}

B = {1, 2, 3, 4}

a. B c A

b. 3 c A

c. 4 c A

d. A c B

e. none of the above

Answer 1

`\large\boxed{A\subset B}`

Explanation:

`A=\{1,\ 2\},\ B=\{1,\ 2,\ 3,\ 4\}\\\\A\subset B,\ \text{because all elements of the set A are the elements of the set B.}`