The meaning of the word alleged is (of an
incident or a person) said, without proof, to have taken place or to have a
specified illegal or undesirable quality. So among the choices alleged is
something similar to word suspected.so the answer is a
The sentence that is correctly construed with an independent clause and a dependent clause is A) As they examined the evidence afresh, they thought of a completely different explanation.
The other sentences don't have dependent clauses, only phrases.
The correct answer is D. A prepositional phrase means that it starts with a preposition. And in these examples, D is the only one that starts with a preposition "on".