Sentence no 5: We took a tent, a cooler, and a sleeping bag.

This bothered me and my teacher. Sentence itself is correct unless we consider serial comma aka oxford comma. In US it is ok but in British English it is discouraged and the serial comma is only permissible for clarity sake. So we both are wondering about the style guide of CSS. Has anyone any info over it?

Good luck everyone who appeared in 2016. Overall papers are quite well-balanced if we overlook few things.

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