This question focuses on the Republican party's concerns regarding the younger generation of voters. The correct answer is based on the information that Republicans are panicked about young voters not aging out of liberalism. Option A is incorrect because it suggests a conversion to conservatism, which is a self-reassuring thought, not a concern. Option C is factually incorrect as it mentions grandkids in a way not supported by the given information. Option D is incorrect because it suggests a shift to the Democratic party after having children, which is not mentioned.