可以促进钙磷的吸收，临床上用于防治佝偻病和骨质软化病的药物是

A、<p><span style="font-size: 10.5pt; font-family: 宋体;">维生素<span lang="EN-US">C</span></span></p>

B、<p><span style="font-size: 10.5pt; font-family: 宋体;">维生素<span lang="EN-US">B₆</span></span></p>

C、<p><span style="font-size: 10.5pt; font-family: 宋体;">维生素<span lang="EN-US">D₃</span></span></p>

D、<p><span style="font-size: 10.5pt; font-family: 宋体;">维生素<span lang="EN-US">K₃</span></span></p>

E、<p><span style="font-size: 10.5pt; font-family: 宋体;">维生素<span lang="EN-US">A</span></span></p>