2. Jackie is single and has reached full retirement age. She is working part time and earning $30,000 per year. Are her social security benefits taxable, and if so, what percent of her benefits are taxable? A. No, her social security benefits are not taxable B. Yes, up to 85% of her social security benefits are taxable. C. Yes, up to 50% of her social security benefits are taxable. D. Yes, all her social security benefits are taxable