The correct option is (C): C
In the context of the sentence, the phrase "so that I can" is intended to indicate purpose. However, to maintain proper tense and structure, it should be written as "so that I could" to align with "He gave me a pass," which is in the past tense.
Among scientists, the discovery of the double helix structure of DNA and the genetic code it incorporates is widely regarded to be one of the most significant scientific discovery of the twentieth century.
If the President knew that his allies would let him down so suddenly, he would have handled them with the greatest care.
Thank goodness, the damage to the car was \(\underline{neglectful.}\)
Although the new policy aims to increase efficiency, reducing costs, and enhancing employee satisfaction, some employees feel that the changes are too abrupt and poorly communicated.