Determine why the marked bond in the following reaction is the weakest bond.

• A. The marked bond is the weakest bond because it is longer than the other bonds, and cleavage of this bond results in the formation of very stable bridgehead alkyl radicals.
• B. The marked bond is the weakest bond because it is longer than the other bonds, and cleavage of this decreases the ring strain.
• C. The marked bond is the weakest bond because it is shorter than the other bonds, and cleavage of this bond results in the formation of very stable bridgehead alkyl radicals.
• D. The marked bond is the weakest bond because it is shorter than the other bonds, and cleavage of this decreases the ring strain.

Answer: (B)