Final answer:
Adhesive bonds are best loaded in shear and are weak in tension, making them suitable for lap or sleeve joints. The correct answer to the question is C. Shear, tension.
Step-by-step explanation:
The question pertains to the appropriate loading conditions for adhesive bonds. Adhesive bonds should ideally be loaded in shear only. Adhesives tend to have weaker resistance against tension forces, which is why they are best suited for lap or sleeve joints that primarily subject the bond to shear forces. The correct answer is C. Shear, tension. Understanding the mechanical properties and limitations of adhesives is crucial in the design of joints and structures where adhesives are used.