Context: We do n't have a dog . We could n't work out how she could even know there was such a thing as dog biscuit . But by this time she had reached the stage of rolling on the floor wailing " I want dog biscuit ! " It took an older sister to translate what the adults had utterly failed to grasp . It was n't a dog biscuit she wanted . It was a choc biscuit . Oops !

Question: How old was the child in question likely to be ?
Options:
0. between six and eight
1. between three and four
2. Between one and two
3. None of the above choices .
Answer: 2