With my school experience I would have to say B, because a transitive verb has to be an action verb and express a doable activity. An example would be: Sylvia KICKED Juan under the table.
I think it is answer B. Sorry if it's wrong.
A reliable source is a document!
“ teens need adequate sleep and REM sleep to rebuild long term memory for learning and , focus attention for driving and maintaining health and fighting obesity.”
I would say A. "Be quiet, and you ought to be considerate of others." would be the most appropriate answer.:)
