For the tempered steel alloy, whose stress strain behavior may be observed in the Tensile Tests module

Question:

For the tempered steel alloy, whose stress strain behavior may be observed in the "Tensile Tests" module of Virtual Materials Science and Engineering (VMSE), determine the following:
(a) the approximate yield strength (0.002 strain offset),
(b) the tensile strength, and
(c) the approximate ductility, in percent elongation.
How do these values compare with those for the oil-quenched and tempered 4140 and 4340 steel alloys presented in Table B.4 of Appendix B?