offer (v.) to present for sale
accept (v.) to receive willingly; to be able or designed to take or hold (something applied or added)
concession (n.) reduction in price
alternative (adj. & n.) of one or more things
deal (v. & n.) v. do business, n. a business arrangement
bargain (v. & n.) v. discuss a term of transaction, n. something offered cheaply, an agreement on the term of transaction or sales
propose (v.) put forward for consideration or as a plan n. proposal