Respuesta :
Answer:
1) obstinately; 2) expediency; 3) parsimony; 4) eminent; 5) impregnable
Explanation:
1) In the first answer, the only possible alternative is "obstinately" since it is an adverb that modifies the verb "stuck" and suits the context.
2) The only correct option is "expediency" since it is a noun that means "doing something that is convenient"
In sentence 3) the correct option is "parsimony" since it is a noun that means "being careful with money"
Option 4) "eminent" is the correct one since it is a adjective that means "famous and respected".
In sentence 5) the correct answer is the adjective "impregnable" since it means "that cannot be entered, strong and resistible"