L$.$ Multiple$-$Choice Questions $(1$ Point each$)$

Which of the following is true with regard to survey research?

A$)$ It is seldom used to collect data for descriptive research.

B$)$ It is the most widely used method for establishing causal relationships.

C$)$ It is the most widely used method for gathering primary data.

D$)$ It is identical to the ethnographic research approach in terms of methodology.

E$)$ It is seldom used in research as it is an inflexible tool for data collection.