What’s the main idea of this passage

A．Most people believe that good leaders are born.
B．Leadership skills are not easily obtained.
C．Leaders develop their leading skills in their everyday lives.
D．Leaders seem to want megadoses of vitaminC.

A．The attitudes of different people toward others are very strangely different.
B．Some people are much interested in conversing on the same topics in the course of a long train journey.
C．The attitudes of some people are to develop a friendly feeling toward those with whom they come into contact.
D．Some people have keen interest in whatever they see and whomever they make the acquaintance of.