Which protein inhibits interaction between actin and myosin

Which protein inhibits interaction between actin and myosin to prevent skeletal muscle contraction; and which ions remove the inhibition? troponin; sodium ions tropomyosin; calcium ions actin; calcium ions myosin; sodium ions

Solution

The correct answer is Option SECOND ,

i.e. TROPOMYOSIN , CALCIUM IONS .

Rest of the options are absolutely wrong .