Please check my answer thanks :)

If you want to start training a four-month-old puppy for agility competition, which one of the following obstacles would be best to start with?

A. Seesaw
B. Dog walk

C. Tunnel

D. A-frame

My answer is C

To determine the best obstacle to start training a four-month-old puppy for an agility competition, we should consider the puppy's age and capabilities. Agility training for puppies should focus on building their confidence, coordination, and foundation skills before introducing more complex or physically demanding obstacles.

In this case, the best obstacle to start with for a four-month-old puppy would be the tunnel (option C). The tunnel is relatively low impact and does not require the same level of physical exertion or balance as other obstacles. It also helps improve a dog's focus and builds their confidence. Puppies usually find the tunnel more approachable and easier to navigate compared to higher or more advanced obstacles like the seesaw (option A), dog walk (option B), or A-frame (option D).

Remember, while the tunnel is a suitable starting point for a young puppy, gradually introducing other obstacles as the puppy progresses in their training is important to build a well-rounded agility skill set.