The increasing basicity order of the following compounds is :
` (A) " " CH_(3)CH_(2)NH_(2)" "(B) {:(" "CH_(2)CH_(3)),(" "|),(CH_(3)CH_(2)NH):} " "(C) H_(3)C-overset(CH_(3))overset(|)N-CH_(3)" "(D) Ph-overset(CH_(3))overset(|)N-H`
A. `(A) lt (B) lt (C) lt (D)`
B. `(D) lt (C) lt (B) lt(A)`
C. `(A) lt (B) lt (D) lt (C)`
D. `(D) lt (C) lt (A) lt (B)`