The most important aspect of movie making is conveying

Option (A): Not True
This statement is not true because it contradicts the meaning that can be implied from the question. The artistic quality is of course important but it's of less importance when compared to other factors as mentioned in the question.

Option (B): Not True
This is not true as well because artistic quality is a factor which makes for an effective movie maker. This statement gives the notion that photographers known for their photographs rarely make effective moviemaker which is not according to the question.

Option (C): True
This statement is true because it actually conveys the entirety of the message contained in the question. That is, artistic quality alone is not enough factor, except with other factors, to make a good moviemaker.

Option D:Not True
This statement is wrong because it posits that a good movie photographer does not need to give serious thought to artistic quality, which contrary to the message of the question, is also an important factor although not as important as others.
This is to say that by implication this statement can be interpreted to mean that even with a poor or bad artistic quality as a factor, a moviemaker can be effective which is not true according to the question.

Option E: Not True
This statement seems to only indicate a single factor as being responsible or sufficient for conveying a scene's rhythm, that is, 'highlighting of the different aspects of the action taking place'. This is however wrong because there are other factors too, as mentioned in the question above.