The answer is d, one who leads. The suffix "er" means someone. So, the answer is d.
my answers is D : one who leads for example is you are asking about a student so it'll be ONE WHO.LEARNS hopefully my answer was helpful?
The word 'leader' means 'one who leads', derived from the base 'lead' and the suffix '-er' which indicates a person performing the action. The correct choice is option D. The other options describe qualities or traits rather than the definition of a leader as a person.
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