Answer:
The answer is II. business spending on new equipment
Step-by-step explanation:
For a spending to be classified as investment, the money must ne spent or acquiring non-current asset(fixed asset or long-lived asset.
In the question above, only business spending on new equipment will be classified as investment because the business spent money to acquire non-current asset.
Purchase of current stock is a financing activitiy while taking out loan is also a financing activitiy.