In the context of commodity markets, the term 'Contango' is used to describe a situation where the forward price of a commodity is higher than the spot price. This is typically observed when the costs associated with storing the commodity (such as warehousing and insurance costs) are significant. In such a scenario, the forward price needs to be higher than the spot price to compensate for these costs. This results in an upward sloping forward curve, where the forward prices of contracts with longer maturity are higher than those with shorter maturity. This is exactly the trend that Busra Turkmen observed in the gold forwards contracts. Therefore, the term 'Contango' accurately describes this trend.

Choice A is incorrect. Convenience yield refers to the benefits or advantages that a company gains by holding a physical commodity, instead of the contract for the commodity. It does not describe the trend in forward prices of commodities.

Choice B is incorrect. Backwardation is a situation where the spot price is higher than the forward price. This scenario contradicts Busra's observation where forward prices are increasing with maturity, hence it cannot be correct.

Choice C is incorrect. There's no term as 'Upwardation' in commodity markets, making this option invalid.