difference between "devotion" and "commitment"

[Thunu]

Business English Lesson, Advanced Level

ESL/EFL Test #20 "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 "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
_________________________

Can you explain the difference between "devotion" and "commitment" in this sentence, please?

Thu
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Reach an agreement as ploughing, don't let argument happen at crops.

[Mister Micawber]

.
'Devotion' includes an emotional parameter that is inappropriate here.
.
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Native English teacher at Mister Micawber's

[Georgian]

devote is voluntary and commitment-compulsory