Which of the following is the best way to combine the independent and dependent
clause to make it a complex sentence?
Dad shook his head no.
who worked in a circus many years ago.
O
A. Dad shook his head no after he had worked in the circus many years ago.
O
B. Dad shook his head no, and he had worked in the circus many years ago.
O
C. Dad shook his head, he had worked in the circus many years ago, no
O
D. Dad, who had worked in the circus many years ago, shook his head no.

The answer to your question would be sentence D.

Explanation:

The best way to combine the independent and dependent clause to make it a complex sentence is as shown in sentence D. A complex sentence is a sentence that contains an independent clause and one or more dependent clauses.  An independent clause, as opposed to a dependent one, can stand alone as a sentence as it represents a complete thought (see 1). (1) is not an independent clause as it fails to stand alone as a complete sentence, it depends on the main (dependent) clause to complete its meaning (see 2).

1) *Who had worked in the circus many years ago

2) Dad shook his head no

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.