Answer:
The short answer is: yes, the answer to "How do you do?" is "How do you do?" It is also acceptable to reply "I'm fine, and you?" and similar variations. However -- and this is important to the etiquette side of things and not so much the language side -- "how do you do?" is actually not a question!
2 more people like to swim than hike because 4 (the people who swim) minus 2 (the people who hike) is 2 people
Your answer is B. hope this helps
