Why here commercials?

[Emarwa]

English Language Tests, Intermediate level

ESL/EFL Test #93 "Hotchpotch", question 9

I sometimes find that the ......... made by the advertisers are more interesting than the actual television programmes themselves.

(a) commercials
(b) comments
(c) commerce
(d) commercially

English Language Tests, Intermediate level

ESL/EFL Test #93 "Hotchpotch", answer 9

I sometimes find that the commercials made by the advertisers are more interesting than the actual television programmes themselves.

Correct answer: (a) commercials
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why here commercials?

Emarwa

[Mister Micawber]

.
Commercials are advertisements on radio, TV or at a cinema.
.
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Native English teacher at Mister Micawber's