Absent$-$minded John lost his debit card on May $1.$ He reported it missing the next day; however, $$600$ had already been purchased with the card without using his PIN. According to the Electronic Funds Transfer Act, how much of this $$600$ loss is John Tresponsible for?

a$.$ $$50$

b$.$ $$600$

c$.$ $$0$

d$.$ $$500$Absent$-$minded John lost his debit card on May $1.$ He reported it missing the next day; however, $$600$ had already been purchased with the card without using his PIN. According to the Electronic Funds Transfer Act, how much of this $$600$ loss is John Tresponsible for?

a$.$ $$50$

b$.$ $$600$

c$.$ $$0$

d$.$ $$500$