Choose the agreement that must be in writing in order to be enforceable: Select one: O a. Ivan agrees to sell his catering business to Lawrence on the condition that Lawrence operate only in Edmonton. O b. Solomon agrees to build a driveway in front of Sophia's home for $4000. O c. Five Guys Band agrees to perform at an event in Red Deer later this year, so long as the province allows gatherings of over 200 people to occur. O d. George agrees to transfer his business to Ali provided that Ali marries George's daughter by the end of he year