An aldehyde, a secondary alcohol
Answer: A & B
Explanation
The honey bee and insect sting have a formic acid which, when injected in the skin results to irritation and pain.
The bite contains in the insects is called the nettle, which forms the formic acid and histamines with other chemicals.
Therefore, to neutralize the effect of the acid, an anhydride solution should be rubbed on the area along with zinc carbonate to ensure the skin is not affected.
Alternatively baking is a neutralizing agent that can be applied in the stung area.