There is no description so I am not sure, however I believe it is C. Cytoplasm
Even though synonyms generally share the same meaning, they might not apply in the same context. So, if you want to use one specific word you should do that instead of trying to find a synonym that doesn't quite fit into the context you've established. An example is if you want to use the sentence "I was mad", meaning "I was angry", you could look for a synonym. One synonym is "absurd". However, this is a different type of mad, meaning crazy instead of meaning angry. "I was absurd" has an entirely different meaning than originally intended. This is why you should always double check the contextual meaning of the synonym you want to use.
I phoned him because he was not home.
The second part of the sentence is now dependent on the first as it cannot stand alone as its own sentence.
Answer:
The correct options are:
A) Jonas has homework. It isn't finished. and
D) Jonas has homework, it isn't finished.
Explanation:
In all the correct instance, the sentence is constructed such that there are still two independent clauses.
In A above, the clauses are clearly identified and so is the point of their separation.
The same is true for D.
In B, C, and E the sentences are no longer independent.
In F, the demarcation between two sentences by the semicolon is evident however the second half of the sentence is no longer dependent as it is missing the pronoun "it".
Cheers!
Between ideas would be the answer