Answer:
e. instantly redeemable coupon
Step-by-step explanation:
Instantly redeemable coupon -
It is the type of coupon , which is provided along with the goods or services , the person opt for , is referred to as instantly redeemable coupon.
This coupon , can be applied easily at the time of purchase and hence can avail the given discount.
These coupons are given , in order to attract more customers and increase the production.