CTET Class I to V 12 Jan 2023 Paper

Anaya observed ants carrying a dead centipede. On this basis she concluded that ants are very powerful and even if they are small, they can carry bigger animals.
Which of the following EVS process skills are involved by Anaya in making this generalization?
A. Observation
B. Prediction
C. Estimation
D. Experimentation
E. Inference