Final answer:
Ten parsecs is equivalent to 32.6 light-years, using the conversion that 1 parsec equals 3.26 light-years.
Step-by-step explanation:
The question 'Ten parsecs is about how many light-years?' pertains to astronomical measurements of distance. When we convert parsecs to light-years, we use the established conversion rate that 1 parsec is equivalent to 3.26 light-years. Therefore, ten parsecs would be 32.6 light-years, as the calculation is straightforward: 10 parsecs × 3.26 light-years/parsec = 32.6 light-years. This clarifies that the correct answer is option d. 32.6 light-years.