In the sequence 0, 1, 2, 3, 4, 5, how many times does the number 2 occur?

A. 1

In the sequence 2, 4, 6, 8, 10, 12, how many even numbers are there?

B. 5

In the sequence 2, 4, 6, 8, 10, 12, how many times does the number 8 occur?

A. 1

In the sequence 2, 4, 6, 8, 10, 12, how many times does the number 8 occur?

A. 1

In the sequence 5, 10, 15, 20, 25, 30, how many times does the number 15 occur?

A. 1