Clueless answer inspection? we have given L H a reach of correct answers re her...

we have given L H a reach of correct answers re her boiler selection even so she still chooses the one answer the rest of us informed people know and own said is wrong and indicated that by 3 down thumbs
what was the point, mind-boggling, actually totally believable
Answers:    Hey.........It's her loss, and expense. You are asked for suggestion and if the person chooses not to use it?? Oh all right...
Is this a "girl" thing..??