Mr. Silverstone invested some money in 3 different investment products. The investment was as follows:

a. The interest rate of the annuity was 4%.

b. The interest rate of the annuity was 6%.

c. The interest rate of the bond was 5%.

d. The interest earned from all three investments together was $950.

Which linear equation shows interest earned from each investment if the total was $950?

a. ) a + b + c = 950
b. ) 0. 04a + 0. 06b + 0. 05c = 9. 50
c. ) 0. 04a + 0. 06b + 0. 05c = 950
d. ) 4a + 6b + 5c = 950