With reference to the above graph, which of the following statement is correct? I. The point \( ...

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With reference to the above graph, which of the following statement is correct?
I. The point \( E \) on the graph is the ultimate tensile strength \( \sigma_{u} \) of the material.
II. If the ultimate strength and fracture points \( D \) and \( E \) are close to \( B \), then the material is said to be brittle.
III. If points \( D \) and \( E \) are far apart, then material is said to be ductile.
(a) Only I
(b) Only II (c) Both II and III
(d) Only III
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