Which of the following is false:
(a) Every convergent positive series is convergent.
(b) Every absolutely convergent series is convergent.
(c) If the series $Σ S_n$ converges and $Σ |S_n|$ diverges, then $Σ S_n$ is conditionally convergent.
(d) The series $1 − 2^{-2} + 3^{-2} − 4^{-2} + …$ is a divergent series.