[Solved] Assume the binary variable lock is initialized to be 0, which of the following can be an implementation of the entry section to solve the critical-section problem? A) while (compare and swap(&lock, 0, 1) != 0), do nothing; B) while (test and set(&lock)), do nothing; C) both A and B D) none of the above Net Profit: The amount of money left over after all operating expenses, taxes, interest, and dividends are paid, indicating the financial health of a company. Stock Price: The cost of buying a share of a company, which fluctuates based on market conditions and the performance of the company. 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.