Given the material testing data curves,

$($a$)$ Calculate the equilibrium modulus of a cylindrical specimen $($thickness: $5$ mm $)$ that is axially loaded in unconfined compression. The x $-$axis is time $($seconds$).$

$($b$)$ For a material composed of fluid and solid phases, what mechanism of load support exists for most of the peak load? Explain.

$($c$)$ What type of test is this?