Gantry girders can be designed1. As laterally supported beams.2. As laterally unsupported beams.3. By using channel sections.Select the correct answer using the codes given below:

Gantry girders can be designed1. As laterally supported beams.2. As la

1.	Gantry girders can be designed1. As laterally supported beams.2. As laterally unsupported beams.3. By using channel sections.Select the correct answer using the codes given below:
A.	1, 2 and 3
B.	1 and 2 only
C.	2 and 3 only
D.	1 and 3 only
Answer» C. 2 and 3 only