How is the movement of electrons represented in organic reaction mechanisms?

Explain hyperconjugation or no-bond resonance with an example.

Which of the following is the most stable carbanion?

The electron displacement effect observed in the given structures is known as

What is the correct order of decreasing acidity for the following compounds?

Given below are two statements $:$
Statement $I :$ Hyperconjugation is not a permanent effect.
Statement $II :$ In general,greater the number of alkyl groups attached to a positively charged $C$ atom,greater is the hyperconjugation interaction and stabilization of the cation.
In the light of the above statements,choose the correct answer from the options given below