A pi divided by three plus two n pi comma five pi divided by three plus two n pi such that n equals zero, plus or minus one, plus or minus two to infinity.
B pi divided by six plus two n pi comma five pi divided by six plus two n pi such that n equals zero, plus or minus one, plus or minus two to infinity.
C pi divided by three plus two n pi comma two pi divided by three plus two n pi such that n equals zero, plus or minus one, plus or minus two to infinity.
D pi divided by three plus n pi such that n equals zero, plus or minus one, plus or minus two to infinity.