Which sentence uses the underlined word correctly?

a. as the sole decision maker, the ceo considered himself the democratic leader of his company.

b. since the leader consolidated all the power for his own use, the country is now essentially an autocracy.

c. the solitary queen ruled the democracy with an iron fist and allowed no interference with her decisions.

d. the autocratic government was particularly popular for its habit of implementing citizens’ suggestions.

B). Since the leader consolidated all the power for his own use, the country is now essentially an autocracy.

Explanation:

The sentence that employs the underlined word correctly is displayed through option B as mentioned above. It employs the word 'autocracy' aptly as here, it comprehends the meaning of the sentence. Autocracy implies a government ruled by an individual or a single party and therefore, possessing absolute power and authority.

Since the leader integrated all the power(absolute power) with himself so the country could be an 'autocracy'. Thus, the statement is justified. The other options to fails to justify the words employed like option A wrongly employ 'democratic' for 'sole decision-maker', option C repeats the same mistake('democracy' with 'solitary queen') and option D inadequately uses 'autocratic' with 'implementing citizen's actions'. Hence, option B is the correct answer.