Based on the following e$-$log $($o$)$ curve, answer questions $21$ to $23$:

$21.$ What is the maximum past pressure, ${}_p^{\text{'}}($in kPa $)?$

a$)200$

b$)400$

c$)800$

d$)3000$

e$)$ Not enough information provided

$22.$ What is the compression index, $C_c?$

a$)=0\mathrm{.}48$

b$)-0\mathrm{.}14$

c$)0\mathrm{.}14$

d$)0\mathrm{.}48$

e$)0$

$23.$ What is the re$-$compression index, $C_t?$

a$)=0\mathrm{.}48$

b$)=0\mathrm{.}14$

c$)0\mathrm{.}14$

d$)0\mathrm{.}48$

e$)0$