Find out the set of correct statements

(A) Meromyosin is the monomeric protein of myosin.

(B) Each meromyosin has head as $\mathrm{HMM}$ and tail as $\mathrm{LMM}$

(C) Increase in ${\mathrm{Ca}}^{2+}$ level leads to binding of Ca with a subunit of tropomyosin on actin filament

(D) ATP hydrolysis is done by myosin head to make cross bridge.