Answer: Option C
Explanation: Short term receivables refers to the amount of receivables that are to be received within a year. Thus, discounting a value for just one period with the market interest rate won't make a big change in value.
Hence the discount is usually considered immaterial as it is very small in value.
The discounting method is usually used for the long term investments in which a huge amount is invested for a period more than on year. As interest rates could change the value of a amount received due to their fluctuating nature.
Thus, the correct option is C.