Context: He must be doing it but I guess never on my watch . Other than that , there is an amazing amount of development that happens in such a short time ! He used to be this peaceful little blob that slept most of the time and seemed only moderately aware of his surroundings . Now he is very ... mobile !

Question: Who may I be describing ?
Options:
0. My dog
1. My cat
2. None of the above choices .
3. My baby
Answer: 3