选D
Tom is the shortest of all the members in the Smith family.汤姆在所有史密斯家族成员中是最矮的.
首先,汤姆 也是史密斯家族的一员,故排除A.any other members（其他任何成员）
其次,any of the members成员中的任何一人,强调的是个体,用于比较级.
而anyone后不能接of,所以可以排除C.
总之,可以这样理解；
Tom is the shortest of all the members in the Smith family.= Tom is shorter than any other member in the Smith family.