Answer: The firm manager should order 10 units today
Step-by-step explanation:
Based on the information that have been given in the question, we should note that the number of units in order before it orders today will be 14.
Also, since the order up to level is 10, it simply means that the firm manager cannot order more than 10 units per day which means that option C of 14 units is Incorrect.
The correct answer will be that the firm manager should order 10 units today.