1. Review the following details. "Would-be marathon runners must be physically prepared to follow a rigorous training schedule.
"Runners attempting their first marathon should have at least one year of running experience.
*Training at the race site can help new runners know what to expect from a marathon-length course.
Choose the best topic sentence to introduce a paragraph containing the details above.
A. First-time marathon runners must take steps to prepare themselves for the race.
8. Even experienced marathon runners must prepare for the physical and mental demands of running a 26.2-mile course.
C. New runners are at a distinct disadvantage if they have never run a marathon racecourse before.