1.Jackson is hurt after falling off of a ladder of a two story house. Roger, a nurse who is walking by helps Jackson and saves his life. Roger later wants to recover the costs to help Jackson. Roger is most likely to win based on

a.nothing.

b.on a theory of an express contract.

c.on a theory of an implied contract.

d.on a theory of a quasi contract.

2.Crafted Metal Works, Inc., offers to design, make, and sell Downtown Transit Agency fourteen streetcars. Crafted Metal authorizes a particular mode of communication, but Downtown Transit sends an acceptance via a substituted means. This acceptance is effective when it is

a.in transit.

b.received.

c.sent.

d.written.