Topic: Substitution, Expression, & Definition,

Best Answer Explained in Below-:

The term "autocrat" refers to an authoritarian ruler who wields absolute power and makes decisions unilaterally, without considering the opinions or needs of others. Unlike a democrat, who involves citizens in the decision-making process and values public opinion, an autocrat typically disregards external input and governance mechanisms that promote collective participation.

In contrast, a bureaucrat typically operates within a structured system to implement policies rather than making decisions solely. A fanatic, on the other hand, is driven by extreme beliefs or ideologies but does not necessarily have ruling power or a governing role.

Therefore, when the question addresses a person who rules without consideration for others, "autocrat" best embodies that notion due to the inherently dictatorial and unyielding nature associated with autocratic leadership. This concentration of power effectively highlights the absence of collaborative governance, making "C) Autocrat" the most accurate option.