What does 'considered' mean?

[Stephan]

Test No. incompl/advan-20 "Money Matters (3)", question 4

As all advisers always do, she stressed that investing in this particular market had to be consindered as a ......... commitment over at least 10 years.

(a) elongated
(b) lengthy
(c) long-term
(d) longing

Test No. incompl/advan-20 "Money Matters (3)", answer 4

As all advisers always do, she stressed that investing in this particular market had to be consindered as a long-term commitment over at least 10 years.

Correct answer: (c) long-term
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Maybe 'consindered' is a typo?

[Alan]

Thanks for that.

Alan
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English as a Second Language
You can read my ESL story In Order