PT 64 S1 Q9

If a child is to develop healthy bones, the child’s dietmust include ... ...

Flawed reasoning in which one of the following most closely parallels the flawed reasoning in the argument above?
(A) If bread is to have a firm crust, it must be baked at the right temperature. It therefore follows that bread that is not baked at the right temperature will not have a firm crust.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Oct 2011 LSAT (PT 64): Logical Reasoning A