Vitamin D: What do the liver and kidney do to vitamin D3? Main form in blood? Active form? Excretion? a) Convert to Calcidiol, Calcitriol, Calcitriol, Bile b) Convert to Calcidiol, Calcitriol, Calcidiol, Urine c) Convert to Calcitriol, Calcidiol, Calcitriol, Bile d) Convert to Calcidiol, Calcidiol, Calcitriol, Urine e) Convert to Calcitriol, Calcitriol, Calcitriol, Bile