The strain-stress plot for materials $A$, $B$, $C$ and $D$ is shown in the figure. Which material has the largest Young's modulus?

$A$ student plots a graph from his readings on the determination of Young's modulus of a metal wire but forgets to label the axes. The quantities on $X$ and $Y$ axes may be respectively:

The graph below represents a typical stress-strain curve for a metal. Identify the point on the graph that is the ultimate tensile strength of the material.

The stress-strain graph of two wires $A$ and $B$ is shown in the figure. If $Y_{A}$ and $Y_B$ are Young's moduli of materials of wires $A$ and $B$ respectively, then

The diagram shows the change $x$ in the length of a thin uniform wire caused by the application of force $F$ at two different temperatures $T_1$ and $T_2$. The variations shown suggest that

In Column-$I$ there are two stress-strain graphs,and in Column-$II$ the nature of the materials is given. Match them appropriately:

Column-$I$	Column-$II$
$(a)$ Graph $A$	$(i)$ $A$ is ductile
$(b)$ Graph $B$	$(ii)$ $A$ is brittle
	$(iii)$ $B$ is ductile
	$(iv)$ $B$ is brittle