The polarity of \( \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH} \) is \( \qquad \) and hybridization of N is \( \qquad \)
Select one:
A. polar, \( \mathrm{sp}^{3} \)
B. polar, \( \mathrm{sp}^{2} \)
C. non-polar, \( \mathrm{sp}^{2} \)
D. non-polar, \( \mathrm{sp}^{3} \)