The president is proud that Dr. Salk's work is extending beyond the United States. Which of the following is not a step Dr. Salk has taken to assist foreign countries? O Dr. Salk has assisted foreign countries by providing technical information. Dr. Salk has helped foreign countries begin to produce the vaccine themselves. O Dr. Salk has offered foreign scientists the opportunity to tour his laboratory. Dr. Salk has tolmeled and given the polio vaccine to children in foreign countries.