After working 10 years as a bus driver, izabel antocicco was in an accident and became permanently disabled. she was 63 years old at the time and was planning to retire on her 65th birthday. her final salary was $55,700 per year. her rate of benefits was 4.5%. what is her monthly disability benefit?
a. $2,506.50
b. $3,458.90
c. $3,508.11
d. $6,458.22