[ 9 1 Dr. Merry, a self-employed dentist, incurred the following expenses: Investment expenses $700 Custodial fees related to Dr. Merry's Keogh plan 40 Work uniforms for Dr. Merry and Dr. Merry's employees 320 Subscriptions for periodicals used in the waiting room 110 Dental education seminar 1,300 What is the amount of expenses the doctor can deduct as business expenses on Schedule C, Profit or Loss from Business? A. $1,620 B. $1,730 C. $1,770 D. $2,430