Question

“sergeant stubby” starts by noting that stubby became a war hero due to his bravery. how does “carl spitz, star dog trainer” start?
it starts by explaining the effect that spitz’s commands had on some of the dogs that he trained.
it starts by describing the reasons why spitz invented a new way of training dogs for hollywood movies.
it starts by explaining that spitz’s way of training dogs was different from the way of other trainers.
it starts by describing the sequence that spitz and other trainers used to train dogs for hollywood movies.

Explanation:

Answer:

It starts by explaining that Spitz's way of training dogs was different from the way of other trainers.