A would be the correct answer.
Tone is the way words are perceived by the reader in any piece of writing. The way the reader interprets the writing will change the reader concepts of the story to the reader.
Answer:
he was considered a genius by marry
the stairway must have been placed by the trespasser
the car was given to me by my mate
The correct answer is 'present, third person singular'.
Infinitive would be - to ask.
Past tense would be - asked.
Present participle would be - asking.