Consider the following data

$\{\begin{array}{cc}\text{:}\{\text{:}{R}_2{P}_6,& P_7{R}_a\}\end{array}$

Draw the

a$)$ Resource allocation graph?

b$)$ Find whether there is any dead lock in the above graph?

c$)$ Recover the dead lock, if any. And mention the name of method that you have used.