Choose the correct option?
| A. |
Total structural isomeric ether of molecular formula `C_5H_12O` is 4 |
| B. |
Basic strength order of following amine in aq. Phase `(CH_3)_2 NH>(CH_3)_3N> CH_3NH_2>NH_3` |
| C. |
Inductive effect is dominant phenomenon over resonance for halogen toward electrophilic attack |
 |
| D. |
All of these |