Iwill mark brainliest how could this sentence be re-written to convey the active voice? the landscape was carefully painted by the artist. a) the landscape was painted. b) the landscape was painted by the artist. c) the artist carefully painted the landscape. d) the beautiful landscape was carefully painted by the talented artist.

Active voice means that the person/object initiating the action is the subject of the sentence.

For example, 
He threw the book away (active voice) vs The book was thrown away by him. passive voice.

For the given sentence, the action was painting.  So go ahead and choose the sentence which indicates that the artist is the subject of the sentence.