Compare the difference between the following two paragraphs. Tell which paragraph is in line with academic writing conventions

A、A lot of people think that the weather is getting worse. They say that this has been going on for quite a long time. I think that they are quite right. Research has shown that we now get storms all the time.;

B、It is widely believed that climate is deteriorating. It is claimed that this process has been continuing for nearly 100 years. This belief appears to be supported by Mckinley (1997) who shows a 55% increase in the frequency of severe winer gales since 1905.;

C、 ;

D、