please not make it public, I do not want other people to see. Thank you.

My research proposal is : Oil cost rises impact on consumers buying behaviour of purchasing and using cars'

And my research objectives are those four:

could you give me any advice on how should I fill each question, please?

1. To examine the impact of rising oil prices on car diversity consumption behaviour?
2. How do prospective owners planning to buy a vehicle deal with the cost of rising oil prices?
3. How will car owners deal with the cost of rising oil prices?
4. To examine the impact of rising oil prices on people's transportation spending.