Incorrect use of a conjunction. This can only be used when the topics being discussed are connected in some way (either action or topic). Since these are 2 different subjects, a separate sentence presentation should have been used with a transitional phrase or word instead. Good work on the presentation though. The trend and summary were in the same paragraph showing a non-memorized writing approach. The problem though, is that it is still short by one sentence to meet the minimum requirement. This happened because of the incorrect conjunction usage. Next time, aim for 3 sentences minimum per paragraph. That can easily be achieved by using individual sentence references.
Incorrect punctuation use. This should have been marked with a colon to indicate the division of a sentence. Since an enumeration list followed rather than a connected discussion, a comma should not have been used.
The grammar used is not perfect, but not confusing either. So the C+C score will have minimal deductions. However, the writer shows a problem with proper sentence structure, word usage, and punctuation mark applications. Therefore more marked deductions to the GRA score will be applied to this task.