How similar are these two sentences, on a scale from 0-5 (0 is "not similar" and 5 is "very similar")?

Suspected U.S. drone strike kills 5 in Pakistan
Suspected US drone targets Islamic seminary in Pakistan

Pick from:
 (a). 0.
 (b). 1.
 (c). 2.
 (d). 3.
 (e). 4.
 (f). 5.
(c).