What is the cheapest plan among KT plans?

A. 1

I think the standard plan is the cheapest.
It's 12,100 won.

Gentleman 7 years ago 0

OK

A. 2

There's a slim plan that the elderly use.
It's probably less than 10,000 won.

Gentleman 7 years ago 0

OK

A. 3

If you don't have an appointment, I'd like to recommend a thrifty phone.
There's a plan that costs 0 won.

Gentleman 7 years ago 0

OK