George offers to sell his car to Suzy for $10,000 on the coming Sunday, to which Suzy agrees. They write down the details on a paper. On the decided day, Suzy pays the cash to George, but he refuses to sell the car to her saying that his friend Marty has offered to pay $30,000 for the same car. On the basis of which doctrine can Suzy sue George?
a. Quasi-contract
b. Implied contract
c. Partially executed contract
d. Both (a) and (b).
e. Promissory estoppel

While cell phones with holographic keyboards are currently in the introduction stage of the industry life cycle, tablet computers are in the growth stage. in the context of this scenario, which of the following statements is true? a. the industry for cell phones with holographic keyboards will face greater competition than the tablet industry. b. while the industry for cell phones with holographic keyboards will focus more on product innovation, the tablet industry will focus more on process innovation. c. while the industry for cell phones with holographic keyboards can reap the benefits of economies of scale, the tablet industry will experience no such benefits. d. the industry for cell phones with holographic keyboards will face price competition, whereas, in the tablet industry, the mode of competition will be non-price.