Answer :
Final answer:
The strongest type of rail among the options given is I-beam rail.
Explanation:
The strongest type of rail among the options given is I-beam rail. I-beam rail, also known as rolled steel joists (RSJ), have high strength and stiffness due to their shape, which resembles the letter 'I'. The flanges and web of I-beam rail work together to distribute the load evenly, making them capable of handling heavy loads.
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