Answer:
b. makes it easier to document purchase and sale transactions
Step-by-step explanation:
EFT means Electronic Funds Transfer and it is when money is moved using computer systems between accounts that can be from one or more banks. EFT includes transactions like direct payments, deposits, transfers on ATMs, bill payments using online banking, among others. According to this, the answer is that EFT makes it easier to document purchase and sale transactions because these transactions are made electronically and you always have evidence of the actions made like deposits and transfers and it makes it possible to monitor the purchases and sales made.
The other options are not right because EFT means Electronic Funds Transfer and it doesn't involve cash transactions.