What is the practical effect of setting max.in.flight.requests.per.connection low in a transactional producer?

What is the practical effect of setting max.in.flight.requests.per.connection low in a transactional producer?

• A. It limits the number of in-flight requests per connection, which can affect transaction guarantees and ordering.
• B. It increases the topic replication factor.
• C. It changes the consumer's fetch size.
• D. It disables idempotence.

Answer: (A)