Have seen several surveys recently where the initial question is :

“How would you best describe your level of involvement in your company's purchase process for _________________?”

And the item is something nonsensical like “rocket-powered axle flangellators”

Response choices are :
Sole decision-maker
Shared decision-maker
Not involved
Not applicable

Seeking advice : what is the model answer here to make sure you go forward into the survey ?
Or is this purely a non-functional question designed to waste your time ?