The increasing order of basicity for the following intermediates is (from weak to strong):

A

$$(iii) < (i) < (ii) < (iv) < (v)$$

B

$$(v) < (i) < (iv) < (ii) < (iii)$$

C

$$(v) < (iii) < (ii) < (iv) < (i)$$

D

$$(iii) < (iv) < (ii) < (i) < (v)$$