Arrange these carbocations in decreasing order of stability: (A) $(\text{CH}_3)_2\text{CHCH}_2^{+}$, (B) $(\text{CH}_3)_3\text{C}^{+}$, (C) $\text{CH}_3\text{CH}^{+}\text{CH}_2\text{CH}_3$, (D) $\text{CH}_3^{+}$.