Address Checking:

The correct answer is (D).

Memory for Addresses:

1. The correct answer is (C).
2. The correct answer is (B).
3. The correct answer is (C).

Number Series:

The correct answer is (A). You must first notice that the number 8 is repeated after each two numbers. If you disregard the 8s, you can see that the series is increasing by a factoring of +3. With this information, you can choose (A) as the correct answer because 19 + 3 = 22, and the two numbers, 19 and 22, are then followed by 8.