Lia squirmed in her seat as she waited for her turn. She didn’t think she could get through this! It was a lot of pressure. She looked at the crowd and saw expectant faces turned towards the stage. She gulped audibly, and the person next to her gave her a look. She smiled sheepishly and ducked her head to hide her blushing face. She was just about to gather enough courage to leave when the presenter called her up. It was her turn. Based on the passage above, what does sheepishly mean? A. sadly B. excitedly C. anxiously D. embarrassedly