Android Electronics Received an Order for 50 Digital Radios on 1

Android Electronics received an order for 50 digital radios on 1 June. The customer took delivery of the radios on 15 June. Android Electronics received payment from the customer on 20 June. The customer returned the goods as being unsuitable on 2 August. According to the profit recognition principle, on which date would the income be recorded?

A) 20 June
B) The income would not be recorded at all.
C) 15 June
D) 1 June