which of the following must be done before drawing a conclusion?

I-Collect and analyse the data
II-Compare the results of the experiments from previous experiments of other researchers
III-Use statiscal test to better understand the data better
IV-Look into the result and it's significance to the real-word environment.

a. I, II, III
b. II, III, IV
c. I, III, IV
d. I, II, IV

NEED NOW PO, UNG MATINONG SAGOT , PAG DI AUTHO REPORT​