Collector carl displays his beer can collection at the local swap meet. mary sees the collection and is interested in buying it. carl says he will sell the collection for $1,500. mary says she really likes the collection but is only willing to pay $1,000. which of the following is correct?
a.
mary's offer is an option contract and she cannot revoke the offer.
b.
mary's counteroffer terminates carl's offer of $1,500.
c.
neither offer is valid. who would ever pay $1,000 or $1,500 for a beer can collection?
d.
if carl rejects mary's counteroffer, she can still accept carl's offer of $1,500.

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Which statement below best describes george waring's approach to solving the problems of water-borne illness? a. waring is going with his "gut," because he believes that instincts and emotions are the best guides for action. b. waring efficiently and thoroughly lays out the case for why the problems are too large and overwhelming to be solved: people should just move out of cities back to their farms. c. waring has gathered the testimonies of people who live in densely populated areas in order to learn how they themselves have solved their problems. d. waring exhibits the industrial age's increased respect for and reliance on science and the scientific method.

Which of the following comes after a period of recession in the business cycle? a. stagflation b. a drought c. a boom d. recovery