For each blank select one entry from the corresponding column of choices. Fill all blanks in the way that best completes the text.

If one were asked who transmitted the first radio broadcast of the human voice, one might guess the _______ inventor Guglielmo Marconi, but in fact the feat was accomplished by the much less well-known Reginald Fessenden.

a. Infamous 

b. Renowned 

c. Contingent 

d. Cogent 

e. Insistent