Question

Join the following sentences into an illative compound sentence.
He is diligent. He will succeed. [Advanced]

• A. He is not only diligent but also successful.
• B. Unless he be diligent, he cannot succeed.
• C. He is diligent and he is successful
• D. He is diligent, therefore he will succeed.

Answer 1

The correct option is D He is diligent, therefore he will succeed.

A compound sentence is made up of two or more principal or main clauses joined together by a Co-ordinating Conjuction and, sometimes includes one or more subordinate clauses.
Eg: 1) The horse reared and the rider was thrown.
2) He says what he means, and he means what he says.
In an Illative Compound Sentence, the second clause draws an inference from the first.
Eg: He is unwell, so he cannot attend office.
In this case,
Option D is correct as the illative conjunction 'therefore' has been properly used to join the two sentences into one illative compound sentence. The second clause is drawing inference from the first one.
Option A and Option C are copulative compound sentences as the copulative conjunction 'not only...but also' has been used in option A and 'and' has been used in Option C respectively.
Option B is incorrect because it's a complex sentence and not a compound one.
In Options A, B and C , the second clause does not draw any inference from the first clause.