Q.Name the biasing circuit which gives excellent stabilization.

Voltage divider bias, also called universal bias, is the most widely used biasing method, especially in the input stages of amplifiers. Two resistors $R_1$ and $R_2$ form a potential divider across the supply $V_{CC}$; the voltage developed across $R_2$, $V_2 = V_{CC}\dfrac{R_2}{R_1 + R_2}$, forward-biases the base-emitter junction, while an emitter resistor $R_E$ provides stability to the operating point.

Applying KVL to the base loop, $V_2 = V_{BE} + I_E R_E$; since $I_E \approx I_C$, the quiescent current is $I_{CQ} = \dfrac{V_2 - V_{BE}}{R_E}$, and the collector loop gives $V_{CEQ} = V_{CC} - I_{CQ}(R_C + R_E)$. Crucially, $\beta$ does not appear in these expressions, so the Q point is essentially independent of $\beta$ and of temperature. …