Identify a true statement about the follow$-$up that salespeople should perform after a sale

Group of answer choices

Salespeople should make a call to say thank you and to check to see that the product is working appropriately.

Personal follow$-$up visits should be avoided because they are expensive and tend to accomplish little.

Salespeople should follow up with only those members of the buying center who are directly involved in the use of the product

Salespeople should ideally follow the $3-$by$-3$ strategy to make all their follow$-$up calls.

Salespeople should avoid regular follow$-$up with their accounts to identify any changing needs as it will tarnish goodwill between the seller and the buyer.