Question

the trees are losing their leaves and its certainly time because autumn came early.

• the trees are losing their leaves, and its certainly time, because autumn came early.
• the trees are losing their leaves, and its certainly time because autumn came early.
• no change
• the trees are losing their leaves and its certainly time, because autumn came early.

Explanation:

Analyze the independent clauses and coordinating conjunctions

The sentence contains two independent clauses: "The trees are losing their leaves" and "it's certainly time". These are joined by the coordinating conjunction "and", which requires a comma before it.

Analyze the dependent clause and subordinating conjunctions

The clause "because autumn came early" is an adverbial dependent clause. When a dependent clause follows an independent clause, a comma is generally not used before the subordinating conjunction "because".

Evaluate the options

• "The trees are losing their leaves, and it's certainly time, because autumn came early." (Incorrect: unnecessary comma before "because")
• "The trees are losing their leaves, and it's certainly time because autumn came early." (Correct: comma before coordinating conjunction "and", no comma before subordinating conjunction "because")
• "no change" (Incorrect: original sentence lacks the necessary comma before "and")
• "The trees are losing their leaves and it's certainly time, because autumn came early." (Incorrect: lacks comma before "and", unnecessary comma before "because")

Answer:

• (A) The trees are losing their leaves, and it's certainly time, because autumn came early.
• (B) The trees are losing their leaves, and it's certainly time because autumn came early. (Correct answer)
• (C) no change
• (D) The trees are losing their leaves and it's certainly time, because autumn came early.