Three questions about law, i have no idea.

If a party is ready, willing, and able to perform under a contract and such performance is refused or prevented by the other party, which of the following is true? O In no instances, other than where a debt is owed, is the performing party taken to have completed its obligation under the contract. O In all instances, other than where a debt is owed by the performing party, the performing party is taken to have completed its obligations under the contract. O The party attempting performance must persist when performance is prevented or refused. O In all instances, the performing party is taken to have completed its obligations under the contract. O In no instances is the performing party taken to have completed its obligation under the contract.Ann hires Bob to mow her lawn on Saturday for $5. When Bob arrives, Ann tells him she will not pay him. What can Bob do? O Mow the lawn and take $5 from Ann's wallet O Either refuse to mow the lawn or insist on payment and mow the lawn Only refuse to mow the lawn Nothing since he has not yet started to mow the lawn Only insist on payment and mow the lawnWhich of the following situations does not involve fmstration of the contract\"? The contract is for the sale of oranges. The govemment outlaws the possession of oranges. The contract is to rent an apartment to view the scheduled victory parade. The parade is cancelled. The contract is to paint a house. Just before beginning to paint, the house burns down. The contract is for a lawyer to provide legal counsel. The lawyer falls into a coma. One party contracts to provide tables to the other at a set price but the price of raw materials increases