<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:You are currently employed as a clinical researcher working on clinical trials of a new drug to be used for the treatment of Parkinsons disease. Currently, you have already determined the safe clinical dose of the drug in a healthy patient. You are in the phase of drug development where the drug is studied in patients with the target disease to determine its efficacy. Which of the following phases is this new drug currently in?? A: Phase 1, B: Phase 2, C: Phase 3, D: Phase 4, E: Phase 0,  <response>: This is a question about the phases of clinical trials for a new drug. Based on the information provided, the drug has already passed Phase 1 safety testing in healthy patients, and is now being tested for efficacy in patients with Parkinsons disease. This means the drug is currently in Phase 2 of clinical trials.B: Phase 2 