What is Jonathan like as a person?

Which three of the following choices are advantages of using active voice a) engages readers b) less wordy c) conceals the subject d) less confusing e) object acted on is given importance

When the subject of a sentence performs the action in the sentence the verb in the sentence is in the what ?

Which would be the most credible source for researching the effects of smoking? letter from your grandfather web page about someone’s lung cancer report prepared by a tobacco company research article in a scientific journal