The Following Is an Example of a Credit Scoring Model

The following is an example of a credit scoring model to estimate the probability of debt rescheduling for country I: P_i= 0.25DSR_i+ 0.17IR_i- 0.03 INVR_i+ 0.84VAREX_i+ 0.93 MG_i
Where P_i is the probability of rescheduling country I's debt; DSR is the country's total debt service ratio; IR is the country's import ratio; INVR is the country's investment ratio; VAREX is the country's variance of export revenue; and MG is the country's rate of growth of the domestic money supply.
According to this credit scoring model, the variable that has the highest positive impact on the probability of rescheduling is

A) total debt service ratio.
B) import ratio.
C) investment ratio.
D) variance of export revenue.
E) rate of growth of the domestic money supply.