If there are 10 routers between the source and destination hosts, how many transport processes will be involved on all devices?

a. 12

b.1

c.2

c. 2

Explanation:

As the routers are only involved with the process of finding the best route to reach an IP address (the destination hosts), they don't look at the IP Datagram payload (which includes the transport protocol header), only to IP header.

So, the only transport processes that "talk"each other, are the one on the source host (defining TCP or UDP source port/s, and the other  on the destination host (defining TCP or UDP destination port/s), so two applications (or more) in both machines can exchange data.

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it would be a. excessive network collisions or d. slow connectivity between devices those would be my answer.