Lina Tells Masha That in Her Country, Only 70 Percent

Lina tells Masha that in her country, only 70 percent of the children under the age of 3 completed all the recommended childhood vaccinations. Masha argues that the only way the percentage can be improved is if the government makes these vaccinations free and easily available. Which of the following, if true, weakens Masha's argument?

A) Many countries prohibit exemptions from vaccinations for religious or philosophical reasons.
B) The amount of funding for developing new vaccines has increased in the past few years.
C) Some controlled diseases have resurged in communities with low rates of vaccination.
D) Many parents hesitate to immunize their children because of speculation that certain vaccines may cause developmental disorders.