[Solved] Recombinant vaccines could consist of which of the following? A) Recombinant vaccinia virus that can express a viral structural protein. B) A recombinant adenovirus that contains a gene for a virus protein. C) Naked DNA that expresses a viral protein. D) A single viral structural protein that forms virus-like particles. E) All of the above are correct. Time-Pressed: The state of being under pressure to complete tasks within a limited timeframe. Negative Emotions: Feelings that are generally considered to be unpleasant or undesirable, such as sadness, anger, fear, or jealousy. Heart Disease: A range of conditions that affect the heart, including blood vessel diseases, heart rhythm problems (arrhythmias), and heart defects among others. Heart Disease: A group of disorders that affect the heart and blood vessels, often related to atherosclerosis or the buildup of plaque in the arterial walls.