Which of the Following Transactions Would Not Be Decided Under

Which of the following transactions would not be decided under the Sale of Goods Act?

A) Marco sold a bicycle to Tara.Although she received the bike immediately,she did not pay any money.She promised to pay $400 in cash within six months.
B) Marco sold a bicycle to Tara.Although she received the bike immediately,she did not pay any money.She gave a cheque to Marco for $400.
C) Marco sold a bicycle to Tara.Although she received the bike immediately,she did not pay any money.She allowed Marco to charge $400 to her credit card.
D) Marco sold a bicycle to Tara.Although she received the bike immediately,she did not pay any money.She gave her old bike to Marco and promised that she would pay $100 within six months.
E) Marco promised to make a gift of a bike to Tara,but he changed his mind and did not give the bike to Tara.