When including the paraphrase in a research paper quotation marks are. a. not required and the original author is not important b . not require but the original author must be recognized c. required the original author is not important d. required but the author must be recognized

B - not required by the orginal author must be recognized

When paraphrasing you do not need quotations marks (those are used for direct quotes, when the actual words are the most important) but the orignial author must be rocognized or it's considered plagurism.

can you add the article

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.