The correct answer is A / an incision is longer than it is deep while a / an puncture is deeper than it is long.
Explanation
The word incision is a term generally referred to as a medical procedure in which a superficial cut is made on a surface of the skin, of different lengths with the help of a very sharp blade. On the other hand, a puncture is a surgical procedure in which an organ is punctured deeply until it reaches an organ using a pointed instrument to extract liquids that it contains. According to the above, the answers that the paragraph completes are A. Incision and puncture.
I don’t think it would change the effectiveness , if bees got used to it or it had always been like that, they wouldn’t have a problem, but if it was a sudden change then they might dislike it