Correct option is D
The question "Why is it that luxury cars and beggars can both be seen at traffic signals?" best reflects a student's ability to critically examine the issue of poverty and inequality. This question implies a deep observation of the societal divide, illustrating the stark contrasts between wealth and poverty that coexist within the same physical spaces. It signifies the student's recognition of the structural and systemic nature of inequality, prompting discussions around the distribution of wealth, economic policies, and societal norms that perpetuate such disparities. By juxtaposing the images of luxury cars and beggars, the student brings forth a powerful visual representation of inequality, encouraging a conversation on why these contrasts exist and how societal structures support or challenge these conditions. This level of inquiry indicates a thoughtful and nuanced understanding of the complex issues surrounding poverty and inequality, highlighting the critical thinking skills necessary to analyze and question the status quo.