In the two stress$-$strain diagrams shown, indicate $($wherever applicable$)$:

$($a$)$ The Elastic Range and the Plastic Range

$($b$)$ The Young's Modulus, E

$($c$)$ The Yield Stress, ${}_y$

$($d$)$ The Ultimate Stress, ${}_u$

$($e$)$ Which of the two graphs refers to a ductile material and which to a brittle material

$($f$)$ Which of the two cases would provide dissipation of strain energy $($e$.$g$.$

earthquake resilience$)$