Final answer:
On the seventh day of creation, God rested from all His work and blessed the seventh day, making it holy. The correct option for what God did on the seventh day is 'D. All of the above', encompassing both His rest and the sanctifications of the day.
Step-by-step explanation:
The student asked what God did on the seventh day of creation. According to the Biblical Book of Genesis, which is a foundational text for both Judaism and Christianity, the sequence of creation unfolds over six days. Each day involves a series of creative acts by God, from separating light from darkness to creating all living creatures, including humans. After these monumental acts of creation, the seventh day is distinct in what God chooses to do.
Genesis 2:2-3 states that on the seventh day, God had completed His work of creation and rested from all His work which He had done. Moreover, God blessed the seventh day, sanctified it, and made it holy because in it He rested from all His work of creation. This act of resting and blessing sets apart the seventh day as a special and sacred time, which later becomes commemorated by the Sabbath day observance among the Jews, as outlined in the Ten Commandments (Exodus 20:8 "Remember the Sabbath day, to keep it holy").
Therefore, when considering the options provided in the question, the correct answer is B. He rested and C. He blessed the seventh day and made it holy. Hence, the most complete answer would be D. All of the above. We should mention the correct option in final answer which is 'D. All of the above' as the seventh day incorporates both rest and sanctification by God.