Select all that apply. if, after extensive research, the expected observations predicted by a theory fail to materialize, then the theory is confirmed is probably false should be abandoned or modified should never be retracted

After spending all that time on the research then by all means modify the hypothesis or aim by reporting such. for example the findings did not bring forth what was expected but brought about different yet interesting findings worth exploring so the hypothesis is changed to reflect this new findings.

i may be way off but.