C) Chloroplast should be your answer.
The most important characteristic of plants is their ability to photosynthesize.
Lipids are unique because, they are made from one carbon skeleton unlike the other macro molecules groups which are made from smaller building blocks.
With the exception of steroid hormones, lipids are generally hydrophobic. Also lipids are relative small molecules when compare in size with other macromolecules.
Most ants are omnivores and are okay with eating plants, seeds, nectar, and even animals. Ants are also opportunistic in their feeding habits, which mean that they can easily adapt to the environment and will eat what they can to remain alive