Confused vs. confusing

[zagor]

English Language Tests, Intermediate level

ESL/EFL Test #211 "What Comes Next? (5)", question 7

If you want us to follow your argument I suggest you ..........

(a) use less conspicuous words
(b) use less complicated words
(c) use less confused words
(d) use less concerned words

English Language Tests, Intermediate level

ESL/EFL Test #211 "What Comes Next? (5)", answer 7

If you want us to follow your argument I suggest you use less complicated words.

Correct answer: (b) use less complicated words
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use less confused words

[Mister Micawber]

.
No. Confusing words might be acceptable, but that option is not offered.
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Native English teacher at Mister Micawber's