Frustrated is when "a situation has occurred which means that the contract can no longer be per-formed". The situation is one which is outside of the control of either party and its no one's fault that this has happened. A common example of this is when contracts were unable to be performed due to Covid-19 and the national lockdown. The government mandated everyone 'stay at home' and therefore some business contracts were unable to be fulfilled, and were therefore 'frustrated' (for example the delivery of popcorn to cinemas- the cinemas were told by the government to close so the popcorn couldn't be delivered. This wasn't anyone's fault). See p. 47 for more information on Contract Frustration

A breach of representation is a major/ fundamental breach and allows the innocent party to rescind the contract and claim damages. A Breach of Representation is when you provide false information about who you are- this might have been a fundamental reason as to why the contract went ahead. If it turns out not to be true, the other party has the right to cancel the contract and claim damages. See p.126

Silence is not acceptance. Acceptance can be in writing, verbal or implied by conduct. The three other options are ways in which a contract could be accepted by conduct. See p.8 of the study guide

The Battle of The forms is won by the party who sends the last form. This is referred to in the study guide as 'the last shot wins'

The outcome is binding and enforceable is the correct answer. However the ruling can be appealed. Arbitration is a flexible approach, and the outcome doesn't set legal precedent. The role of the arbitrator is to reach a decision, only in mediation is the role of the third party to facilitate dialogue rather than reach a decision. See p.80 for more information on arbitration.