Silanes are silicon hydrides of general formula $$Si_nH_{2n+2}$$ and have several applications. From the data given below, the bond dissociation enthalpy of Si-Si bond can be deduced as. 

A

$$-304$$ $$\text{kJ mol}^{-1}$$

B

384.3 $$\text{kJ mol}^{-1}$$

C

304 $$\text{kJ mol}^{-1}$$

D

$$-384.3$$ $$\text{kJ mol}^{-1}$$