The correct answer is D. The house is painted green by Sheela.
The other options are incorrect because they do not accurately reflect the tense of the original sentence. The original sentence is in the simple present tense, which means that it describes an action that is happening regularly or repeatedly. The other options are in the past tense, the future tense, or the passive voice. The past tense would be used to describe an action that happened at a specific time in the past. The future tense would be used to describe an action that will happen in the future. The passive voice would be used to describe an action that is being done to someone or something, rather than by someone or something.
In this case, the action of painting the house is being done by Sheela, so the simple present tense is the most accurate way to describe it.