difference between "devotion" and "commitment"

Business English Lesson, Advanced Level

ESL/EFL Test #20 [color=blue]“Money Matters (3)”, question 1

The representative of the financial consultants assured her that the policy of the firm was that of complete .

(a) destiny
(b) devotion
(c) commitment
(d) attention

Business English Lesson, Advanced Level

ESL/EFL Test #20 [color=blue]“Money Matters (3)”, answer 1

The representative of the financial consultants assured her that the policy of the firm was that of complete commitment.

Correct answer: (c) commitment
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Can you explain the difference between “devotion” and “commitment” in this sentence, please?

Thu

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‘Devotion’ includes an emotional parameter that is inappropriate here.
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devote is voluntary and commitment-compulsory

Also, one should keep in mind that devotion has a strong religious background.