Examine the following pseudocode, which is intended to charge $$10$ shipping for orders more than $$5$ but less than $$50,$ and $$5$ shipping for other orders. What type of error is present?

if orderTotal $>5$ OR orderTotal $<mn\; id="EditorElement\_1251592">5</mn><mn\; id="EditorElement\_1251593">0</mn>$ then

shippingCost $=1$

else

shippingCost $=5$

endif

a$.$ dead path

b$.$ trivial expression

c$.$ incomplete expression

d$.$ unstructured selection