Answer:
a. active
Step-by-step explanation:
A sentence can be defined as a group of words that comprises of both a subject and predicate used to convey a logical information. Sentences are classified into two (2) main categories and these includes;
I. Active sentence: this is a type of sentence in which the subject performs an action being stated by a verb. It makes use of an active voice.
II. Passive sentence: this is a type of sentence in which the verb acts upon the verb. It uses a passive voice.
Therefore, a philanthropist supplied the funding for research represents an active sentence.