I chose option B, mainly because I think it's not really an issue of liking it. All men enjoy watching a woman play with herself. It's more of a time and place issue, it really depends on when you do it.
When I'm in bed with a girl and we're getting down to business, during foreplay, I don't like it when she plays with herself.it kinda gets in the way and she's almost undoing what I'm trying to do. I have found that girls get wild when you tease them and it enhances the experience for them. It's the same with guys, but to a lesser extent since we don't really need the sexual build up like women do. The thing is, that when I'm trying to tease a girl, if she touches herself it's almost like her telling me the ending of a book I'm reading. I want to be in control, let me do the work, let ME pleasure YOU. If I'm taking too long, tell me. No guy is going to protest to a girl telling them she wants his cock in her RIGHT NOW!
On the flip side, I find that it's really sexy if a girl initiates the event by pleasing herself. If she starts to rub herself and nuzzle against me, it lets me know what she's thinking (for once) and to take the necessary preparation.so to speak. After which, I'll take over.