Pick the incorrect statement from the following four statements:

The stress-strain diagram for two materials A and B is shown below: The following statements are made based on this diagram:
I. Material A is more brittle than material B.
II. The ultimate strength of material B is more than that of A.
With reference to the above statements, which of the following applies?

The four cross sections shown below are required to be ordered in the increasing order of their respective shape factors.

The following two statements are made with reference to the planar truss shown below :

$${\rm I}.$$ The truss is statically determinate
$${\rm II}.$$ The truss is kinematically determinate

With reference to the above statements, which of the following applies ?