Final answer:
The correct compound sentence that the sentence diagram expresses is likely (b) 'Dante studies math in the evening, and he plays soccer in the morning.', as it clearly separates the two activities by time and uses a coordinating conjunction to join two independent clauses.
Step-by-step explanation:
The sentence diagram provided seems to be missing in this context, but based on the patterns of English grammar and sentence structure, we can determine which sentence is correct. A compound sentence is made up of two main clauses that could stand alone but are joined by a coordinating conjunction such as 'and'. The given choices suggest that there are two distinct activities that Dante is doing: studying math and playing soccer. These activities occur at different times, one in the evening and the other in the morning.
Choice (b), 'Dante studies math in the evening, and he plays soccer in the morning.' fits the criteria for a compound sentence where both clauses are independent and joined by a conjunction. Choice (a) contains a simple sentence structure combining two activities without focusing on the different times of the day. Choice (c) inaccurately places phrases within the sentence, resulting in an awkward structure. Choice (d) suggests Dante plays soccer both in the evening and the morning, which does not align with the original question prompt.
Therefore, the correct answer to which compound sentence the provided sentence diagram expresses, based on standard English sentence structures, is (b) Dante studies math in the evening, and he plays soccer in the morning.