A person who makes love without serious intentions

Answer: Option B

One word substitute is Philanderer.

Consort: a wife, husband, or companion, in particular the spouse of a reigning monarch.
Philanderer: a man who readily or frequently enters into casual sexual relationships with women; a womanizer.
Romeo: an attractive, passionate male seducer or lover.
Goon: a silly, foolish, or eccentric person.