Which equation represents the average bond enthalpy of the Si−H bond in SiH₄?

 

A.  SiH₄(g)→SiH₃(g)+H(g)
B.  \(\frac{1}{4}\) SiH₄ (g) →  \(\frac{1}{4}\) Si(g) + H(g)
C.  SiH₄(g) → SiH₃(g) + \(\frac{1}{2}\) H₂(g)
D.  SiH₄ (g) → Si(g) + 4H(g)