Which of the following effects of $-{\mathrm{OCH}}_3$ group is operating on this cation?

(i) 

(ii) 

(iii) 

Which of the following orders is correct for the stability of these carbocations?

                 (i)                                    (ii)                              (iii)

Which of the following orders is correct for the stability of these carbocations?
              

${\mathrm{H}}^{+}$ is lost most readily by