Let [tex]F = \{ \omega \in\mathbb {C} : \omega { }^{2020} = 1 \}. [/tex] Consider the groups [tex] \rm G = \left \{\begin{pmatrix} \rm\omega& \rm z \\ 0&1\end{pmatrix} : \omega \in \rm F,z\in\mathbb{C}\right \} \: and \:H = \left \{\begin{pmatrix} \rm1& \rm z \\ 0&1\end{pmatrix} : z\in\mathbb{C}\right \}[/tex] under matrix multiplication. Then the number of cosets of H and G is
(A) 1010
(B) 2019
(C) 2020
(D) infinite​