Answer: Buy cash register along with credit card feature
Step-by-step explanation:
According to the question, cash register machines along give feature of credit card feature will help Adalet to regulate money transactions through recording sales.This machine will collect cash from customer and prints receipt for it along with accepting credit card transaction .
He business will grow as as payment method will be easier and convenient for both customer and herself.She will be able to manage her business easily by keeping record and customer can use credit card and cash both for payment.
Other options are incorrect because hiring more numbers of employees, reducing working hours, joining association of newsstand and cash based businesses swill not help her to grow her business