1. Consider the Black-Scholes stock process dSt = r Stdt +oStdW, where Wt is a standard Brownian motion under the risk-neutral measure Q* associated with the risk-free bond numeraire. A European contract pays Vr = log ST K on maturity date T. (a) Derive the valuation formula for this contract. (b) Derive the delta (A) and (T) of this contract. 1. Consider the Black-Scholes stock process dSt = r Stdt +oStdW, where Wt is a standard Brownian motion under the risk-neutral measure Q* associated with the risk-free bond numeraire. A European contract pays Vr = log ST K on maturity date T. (a) Derive the valuation formula for this contract. (b) Derive the delta (A) and (T) of this contract