Final answer:
Brenda can wait and see if she delivers the pumpkins on time.
Step-by-step explanation:
To determine what Brenda could do without breaching the contract, we need to analyze the options. Option a. is incorrect because Brenda cannot consider the contract breached just because there are no pumpkins growing on August 1st. Option b. is a valid choice as Brenda can wait to see if she actually delivers the pumpkins on time. Option c. is incorrect because Brenda cannot claim true impossibility, as growing pumpkins is not impossible. Option d. is incorrect because the contract does not state that pumpkins are necessary for Wanda to hold her terror house.
Therefore, the correct answer is
option b
, which allows Brenda to wait and see if she delivers the pumpkins on time.