Please read the sentence mentioned below. The underlined part of the sentence has to be corrected.
To have acquainted with him, I could easily understand why he had done it.
(a) To be acquainted
(b) having acquainted
(c) Being acquainted
(d) No improvement required
It seems to me that option (c) also suits the given context. Please explain why I am wrong , and why the option (b) is the best suitable option.
Thanks in advance.