"A" is unlikely. The well-to-do big shots do NOT do the dirty work themselves. They send flunkees underlings and children. "B" is not the style of the Israelis. "C" is possible though unlikely. "D" Is highly probable. They may even have decided to kill two birds with one stone if this individual had become problematic. It would have been a good way to eliminate a "problem" and generate sympathy at the same time. I don't think it will work. "E" - I don't feel sorry. Do you feel sorry?
Timing (proximity to homicide bombing in Israel for which PFLP claimed responsibility) and target (PFLP commander) are too coincindental.
I think this is Mossad's way of saying: "we know where you are, and you'll pay for anything you do to us."
No, he picked up some cut-rate surplus bombs from Friends of the Earth and/or Earth Liberation Front...
--Boris