'a long row of houses' vs 'a long row of cows'

[vida]

English Grammar Tests, Elementary Level

ESL/EFL Test #89 "Common Quantity Nouns", question 8

There was a long row of ......... near the beach.

(a) cows
(b) insects
(c) stairs
(d) houses

English Grammar Tests, Elementary Level

ESL/EFL Test #89 "Common Quantity Nouns", answer 8

There was a long row of houses near the beach.

Correct answer: (d) houses
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i think cows is the correct answer bcs we use row for animal

vida

[Mister Micawber]

No, we don't.
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Native English teacher at Mister Micawber's