please solve this here and show the steps and explain them here

$3.$ On Small Signal Analysis, Consider the circuit below with VBB $=5$V DC Source and R $=1$k ohm

$($a$)$ Carry the DC analysis and for circuit.

Find the diodes states. Determine the DC current and voltage of the diodes.

Assume constant$-$voltage drop model

for the diodes where VD $=0\mathrm{.}7$V in ON

state and Vt $=25$mV;

$($b$)$ Draw the small signal circuit and evaluate the small signal gain Av$=$vo$/$vi