看了一些解释，还是不明白。有谁能帮忙详细解释一下吗？

Which of the following, if true, is the most logical completion of the argument below?

The tax system of the Republic of Grootland encourages borrowing by granting its taxpayers tax relief for interest paid on loans. The system also discourages saving by taxing any interest earned on savings. Nevertheless, it is clear that Grootland’s tax system does not consistently favor borrowing over saving, for if it did, there would be no______

(A) tax relief in Grootland for those portions of a taxpayer’s income, if any, that are set aside to increase that taxpayer’s total savings

(B) tax relief in Grootland for the processing fees that taxpayers pay to lending institutions when obtaining certain kinds of loans

(C) tax relief in Grootland for interest that taxpayers are charged on the unpaid balance in credit card accounts

(D) taxes due in Grootland on the cash value of gifts received by taxpayers from banks trying to encourage people to open savings accounts（A）

(E) taxes due in Grootland on the amount that a taxpayer has invested in interest-bearing savings accounts

A

G国的税务系统鼓励借钱（通过减少贷款的利息的办法），同时不鼓励储蓄(通过对任何储蓄所得利息采取征税的办法）。然而显然G国的税务系统并非一如既往的对借钱更加青睐，因为，如果它真的更加青睐借钱的话，那就不会有——————

A：对那些放在一边来增加纳税人总体储蓄的收入减少税收。（既，对储蓄采取了减少税收的策略）