Hector is flying his plane. To avoid a storm, he climbs \( 5,500 \mathrm{ft} \) without going above his plane's maximum safe altitude of \( 35,000 \mathrm{ft} \). The inequality a \( +5,500 \leq 35,000 \) represents his original altitude \( a \) in feet. Which of the following could have been the original altitude?
