𝐑𝐞𝐚𝐝 𝐚𝐧𝐝 𝐜𝐡𝐨𝐨𝐬𝐞 𝐭𝐡𝐞 𝐜𝐨𝐫𝐫𝐞𝐜𝐭 𝐨𝐩𝐭𝐢𝐨𝐧.
It is a good idea to have a\(n\) ... before beginning to train for a marathon.

• physical exam
• point of entry
• advanced degree
• prescribe