The Emerald Is More Expensive Than the Diamond, and the Diamond

Multiple Choice

The emerald is more expensive than the diamond, and the diamond is less expensive than the sapphire. Therefore, it necessarily follows that the emerald is more expensive than the sapphire.

A) Deductive, invalid.
B) Inductive, weak.
C) Deductive, valid.
D) Inductive, uncogent.
E) Inductive, strong.