Which of the Following Two Are Features of a Legitimate

Which of the following two are features of a legitimate acceptance of a repudiatory breach as set out by Lord Steyn in Vitol v Norelf?

A) The acceptance of a repudiatory breach must be effectively communicated like any other contractual acceptance
B) An act of acceptance of a repudiation requires no particular form
C) The aggrieved party must notify the other party to the contract before they may engage in a similar contract elsewhere to allow the party in breach to correct their performance
D) The aggrieved party need not personally, or by an agent, notify the repudiating party of his election to treat the contract as at an end