C uses correct parallel structure.
Answer:
Dear diary,
Today me and Jack did something really good of the community. As we all know this year has not been good for all of us in the town and nearby. Me and Jack performed a campaign to aware people about the use of water and to save it much as it can. The situation have been tough with the water cutting near to fifty percent and the indications of further decrease. It was a tough day to stand in the heat and interacting with all these people but the feeling after the hard work was really great. I think this day will come out to be a millstone in Jack and my friendship.
Answer:
It is a holy month of worship, improving yourself, not making sins, and fasting. Ramadan is a very special month and teaches us how to care for other people by also giving zakat, and caring for ourselves. We become closer to Allah as well.
Explanation:
I am muslim myself, so I wrote this out of knowledge.