Tony frequently stumbles when he walks. He observes that his father never stumbles. Which explanation can account for the different in how
father and son walk?

Choices:

Tony's stumbling may be the result of a genetic mutation.

Tony inherited his style of walking from his mother's side of the family.

The way Tony walks may be the result of an environmental cause.

Though some of the above are more likely than others, all of the above are possible explanations.

ASAP