On 1 November 20X3, GH entered into a speculative option contract to buy shares in another entity (JK) at a price of $2.50 a share on 28 February 20X4. At the 31 December 20X3 year end, the share price of JK has increased to $2.90. As the contract is standing at a gain at the 31 December 20X3 year end, it should be recorded as a financial asset in GH's books. How should the financial asset be measured at 31 December 20X3? 

a. At amortized cost 

b. At fair value through profit or loss 

c. At cost 

d. At fair value through other comprehensive income