Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Get quick and reliable solutions to your questions from a community of seasoned experts on our user-friendly platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

The Salk vaccine has proved to be a(n) ___ protection against the crippling disease of polio. A. artless B. excrescence C. efficacious D. crescendo