In order for the synthesis of vitamin D to eccur, a series of steps is necessary and any disruption in this process can result in a deficiency of vitamin D. With this in mind, choose the satustions or condatons that could contritute to a vitamin-D deficiency. Check all that apply.
◻Living in a region without a lot of sunlight
◻timited or no use of sunscreen outdoors
◻Having Irver disease
◻Having a lighter skin piomentation