[Solved] An expansile lucent lesion demonstrating a sharp demarcation from normal adjacent bone having a thin sclerotic rim is an A) unicameral cyst B) osteoma C) aneurysmal cyst D) osteochondroma Volatility: Refers to the degree of variation of a trading price series over time as measured by the standard deviation of returns. Market Rate: The prevailing interest rate available in the marketplace for securities or loans, influenced by supply and demand, economic conditions, and the risk profile of the investment. Equity Kickers: Additional equity given to lenders or investors as an incentive, usually in the form of warrants or options. Option Contract: A financial contract that allows the purchaser the option, without any compulsory enforcement, to purchase or dispose of a base asset at an agreed-upon price, either on or prior to a predetermined date.