Utilizing investment assets to gross pay benchmarks, which of the following individuals is likely on target with their investment assets?

a. Jimmy age 55 earns $150,000 a year and has investéd assets of $900,000.

b. Sarah age 35 earns $30,000 a year and has invested assets of $15,000.

c. Terry age 45 earns $60,000 a year and has invested assets of $150,000.

d. Casey age 25 earns $40,000 a year and has invested assets of $9,000.