Institution: SONALI BANK LTD Exam: Sonali Bank Ltd - Sub-Assistant Engineer (Electrical) - 30.09.2016 ||
Topic: Preposition, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The phrase "Opinion varies from man to man" is a commonly used expression that highlights the diversity of perspectives among individuals. The use of "from" indicates the starting point of variation—suggesting that opinions differ when comparing one person to another. The second part, "to," indicates the endpoint of the comparison, reinforcing the idea that opinions can change and be unique across a spectrum of individuals.

Choice D, "from, to," is the most appropriate because it conveys the idea of a range of opinions held by different people. The structure implies a movement or transition from one opinion (held by one person) to another (held by a different person), emphasizing individuality and personal perspective.

In contrast, the other options do not accurately reflect this meaning. For example, "between, and" implies a comparison involving only two entities, which is not suitable for expressing the notion of variability across many individuals. Overall, "from" and "to" successfully capture the essence of the original statement regarding the variation of opinion among a diverse group of people.