This is an alternating addition and subtraction series.

Correct Option: B

This is an alternating addition and subtraction series, in which the addition of 4 is alternated with the subtraction of 3.

Here, there are two alternating patterns.

Correct Option: C

Here, there are two alternating patterns. The first begins with 17 and adds 2; the second begins with 32 and subtracts 3.

Two patterns alternate here. The first pattern begins with 10 and adds 2 to each number to arrive at the next;

Correct Option: A

Two patterns alternate here. The first pattern begins with 10 and adds 2 to each number to arrive at the next; the alternating pattern begins with 34 and subtracts 3 each time.

This is an alternating repetition series.

Correct Option: A

This is an alternating repetition series. The number 32 alternates with a series in which each number decreases by 2.

This is a simple addition series with repetition. It adds 3 to each number to arrive at the next,

Correct Option: A

This is a simple addition series with repetition. It adds 3 to each number to arrive at the next, which is repeated before 3 is added again.