Some astrologers in the past believed that the Sun moves around the Earth.a.Compoundb.Simplec.Complexd.Complex CompoundClear my choice

Step 1: Break Down the Problem

To analyze the sentence "Some astrologers in the past believed that the Sun moves around the Earth," we need to determine the type of sentence it is, focusing on its structure.

Step 2: Relevant Concepts

Here are the definitions of the different sentence types:

1. Simple Sentence: Contains one independent clause (a subject and a verb).
2. Compound Sentence: Contains two or more independent clauses joined by a conjunction.
3. Complex Sentence: Contains one independent clause and at least one dependent clause.
4. Compound-Complex Sentence: Contains at least two independent clauses and at least one dependent clause.

Step 3: Analysis and Detail

• The main clause is "Some astrologers in the past believed."
• The subordinate (dependent) clause is "that the Sun moves around the Earth."

Since there is one independent clause and one dependent clause, this sentence fits the definition of a complex sentence.

Step 4: Verify and Summarize

The sentence is not simple (one independent clause only) nor compound (which requires two independent clauses). It does not qualify as compound-complex because it lacks sufficient independent clauses.

Final Answer

The type of sentence is c. Complex.