Answer:
B. Ability to convey complex ideas and relationships quickly.
Step-by-step explanation:
Oral in-person communication implies the expression of ideas by words of mouth face to face. It exhibits several advantages including the effective interaction and interpretation of thoughts and ideas through facial expressions and body language, enhancement of credibility and trust in the relations, etc. But the most significant and vital advantage is that it allows the speaker to convey a complex idea quickly and more efficiently as it provides immediate feedback through facial expressions that assist the speaker to prepare himself as per the possible reactions and receive the desired outcomes. Thus, it enhances the scope of success of the interaction and develops into a fruitful and trust-building interaction.