advisable

I don't think $\$frac{\text{it}}{\text{A}} advisable that he $\$frac{\text{will be assigned}}{\text{B}} to the job since he has $\$frac{\text{no}}{\text{C}} experience $\$frac{\text{whatsoever.}}{\text{D}} (全国研考,93-64)

请指出并分析正确答案。