Question

Examine the figure shown below where in the numbers indicate the links:

Which of the statements given below are correct?

        1. I₃₄ is at $\infty$, perpendicular to QS

         2. I₄₅ is at $\infty$ , perpendicular to QS

         3. I₇₁ is at T

         4. I₄₅ is at R

         Select the correct answer using the code given below

         (a)  1and 2          (b) 1 and 4       (c) 2 and 3       (d) 1, 3 and 4