You are a consultant who is now doing research on the performance of various online grocery delivery services in Malaysia. Tesco Online, HappyFresh, GrabMart, Lalamove and Signature Market are among those companies who provide these services. Specifically, you would like to measure consumers’ perception towards these companies on the following elements:

i. Company preference

ii. Consumers’ age group

iii. Types of products bought

iv. Affordability of delivery fee

v. Online platforms ease-of-use

a. Recommend a suitable type of measurement scale for the each of the five elements above. 

b. Develop a suitable survey question and the appropriate choice of answers for each of the element above. 

c. What is the most suitable type of survey for this research? Give two (2) reasons for your answer.