The correct answer is: D. No error
The sentence “Do the roses in your garden smell more sweetly than those in ours?” is grammatically correct. The word “more” is used to compare two things, and the word “sweetly” is an adverb that describes the way something smells. The sentence is asking whether the roses in the speaker’s garden smell sweeter than the roses in the listener’s garden.
The other options are incorrect because they contain grammatical errors. Option A
64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube