[Solved] What are significant features in the development of induced pluripotent stem cells? A) Only four transcription factors are required to induce pluripotency in fibroblasts. B) De-differentiated cells have characteristics of embryonic stem cells. C) Potentially, iPS cells represent a new class of therapeutic agents. D) All of the answers are correct. E) None of the answers is correct. Naked Call Option: An options strategy where the investor sells call options without owning the underlying asset, exposing them to unlimited potential losses. Potential Loss: The amount of money that could be lost in an investment or financial transaction under adverse conditions. Call Premium: The amount by which the price of a call option exceeds its intrinsic value, reflecting the cost to purchase the option above its immediate exercise value. Call Contract: An agreement that gives the option buyer the right, but not the obligation, to buy a specified quantity of an asset at a predetermined price within a certain time frame.