Select the option that can be used as a one-word substitute for the highlighted phrase in the following sentence.
She was known for her ability to communicate effectively and express herself clearly in writing and speaking.

Correct option is B

The correct one-word substitution for the highlighted phrase is (b) "articulation."
Explanation:
Articulation: The ability to express oneself fluently and clearly in speech or writing.
Hindi meaning: स्पष्ट उच्चारण या अभिव्यक्ति
Example: Her articulation of the complex idea was impressive.
Meanings of other options:
Incoherence: Lack of clarity or organization in speech or writing.
Mumbling: Speaking indistinctly and quietly, often in a way that is difficult to understand.
Rambling: Speaking or writing at length in a confused or inconsequential way.