Answer:
A). Devour
Step-by-step explanation:
The Connotation is characterized as the 'meaning of a word or phrase that is implied or suggested by the author in the context they are used in.
In the given paragraph, the word 'swallow' connotes 'to envelop or absorb something completely' through which the author suggests that 'the devil and the hell are fain to enclose(swallow) them completely.' This is similar to the meaning of the word 'devour'(to absorb or engross something or someone mindfully') as suggested by the author. Thus, both the word suggests a similar meaning, and hence, option A is the correct answer.