An appeal cannot be admitted in Supreme Court until the appellant ?

An appeal cannot be admitted in Supreme Court until the appellant ?

Explanation

An appeal cannot be admitted in Supreme Court until the appellant ?

A. Signed the relevant documents as provided in R. 7, O. XLV of C.P.C. B. The appellant submit or deposit security so required as provided in R.7,O.XLVof CPC

C. Both A and B

D. None of the these