______ is the capital of Colombia. A: Bogota B: Istanbul C: Ankara D: Taksim

Q8-Which of the following proposals are true? A: 1- The new viral recombinant vaccine expressing antigen 85A is efficient in human clinical trials B: 2- Several vaccine candidates based on MVA (Modified Virus Ankara) are protective in human clinical trials C: 3- The recombinant MVA vaccine expressing antigen 85A is protective in pre-clinical tests