The most appropriate would be D or A. I don't see how wearing different shoes would help the clients knees.
Public safety regulations protect workers because they provide regulations about various aspects of public safety that increase the safety of different job-related possible occurences which could influence how workers perform their job (mostly in terms of their own safety).
The question only makes sense if you specify that
you're talking about the same amount of each.
Olive oil . . . . . 120 calories / Tablespoon
Table sugar . . . 22.5 calories / Tablespoon
In equal volumes, olive oil has a little more than
5 times the calories of granulated sugar.
Sesame oil, soybean oil, almond oil, canola oil, corm oil,
cottonseed oil, flaxseed oil, grapeseed oil, palm oil,
macadamia nut oil, peanut oil, safflower oil, walnut oil,
wheatgerm oil, and sunflower oil are all virtually identical
to olive oil in calorie content, but their saturated fat content
is different.