Answer:
A contract with additional non-material term unless Jennifer objects
Explanation:
Jennifer Boutique and Avonti Ltd. are business partners for many years.
Jennifer's Boutique orders 100 scarfs at $2.00 each from Avonti Ltd.
Avonti Ltd. sends back a confirmation letter with an additional, non-material term.
There is a contract with additional non-material term unless Jennifer objects. If Jennifer doesn't object to the additional non-material term then contract is enforceable.