Answer:
A. The wavelength increase
Explanation:
The wavelength should increase if the frequency of a sound increases.
??? (Sorry if this is wrong)
So you know how it fits together, the ordering of the sequence.
Answer:
Go to a sex clinic and ask if this is a personal enquiry or listen in your pshe lessons if you have them
Explanation:
Umm can you be a tad bit more specific?
If less is the only option then go with that like your question suggests but more feels like a better answer
