Geometry

Question Analysis:
This question involves analyzing the logical relationship between multiple conditional statements.
The main focus is on applying the transitive property of conditionals.

Key Concept Explanation:
If p→q and q→r are both true, then p→r must also be true.
This is known as the transitive property of conditionals.

Step-by-Step Solution:
Given p→q is true and q→r is true.
Apply the transitive property: If p→q and q→r, then p→r.
Thus, p→r must be true.