You are a paralegal working for a small firm, Darrow and Bryan. Your supervising attorney, Mr$.$ Darrow, received a telephone call from a long$-$time client, Kate Morgan. Ms$.$ Morgan has relayed the following facts to Mr$.$ Darrow, and Mr$.$ Darrow has asked you to prepare a memo addressing certain issues:

On last February $1,$ Kate, who owns a gift shop, contracted with Al$$s Supplies, to buy $4,000$ red balloons for $$1,000.$ The balloons were to be delivered on February $11.$ On that day, Al telephoned Kate and suddenly demanded to be paid $$1,200$ for the $4,000$ balloons. Al told Kate he would not deliver the balloons unless Kate agreed to pay $$1,200$ instead of $$1,000.$ Kate needed the balloons for Valentine$$s Day sales and could not find replacements elsewhere. Thus, Kate agreed to pay more and made a new promise to pay $$1,200.$ Al made delivery and billed Kate $$1,200.$ Kate has refused to pay more than $$1,000,$ and Al has threatened suit.

$($a$)$ Should Al have a successful lawsuit for the full $$1,200?$ Why or why not?

$($b$)$ Is Kate$$s new promise supported by consideration? Why or why not?

$($c$)$ Has Al made a new promise? If so$,$ is Al$$s new promise supported by consideration? Why or why not?