Answer:
C. After the injury, she was only able to lift light objects.
Step-by-step explanation:
"Light material floated up and became the early mantle and crust while iron and nickel pulled to the center of Earth" In this sentence, the word light is an adjective that means of little weight. Sentence C uses light in the same way because it is referring to objects that are easy to move since they are not heavy.
In option A, the word light is a verb that means to burn a candle to let them see.
In option B, the word light is a noun that is the brightness that allows us to see.
In option D, light is an adjective that modifies the noun kiss. It describes a delicate, small kiss.