The correct option is C 68 - 90%
Lac is the scarlet pigment present in the live, pre-emergent insects (Kerria lacca) which develop in a resinous cocoon, known as "sticklac". It contains approximately 70 - 90% of resins. Lac is an commercially important scarlet substance that is used for dyeing wool and silk, in cosmetics, pharmaceutical glazes, wood finishing varnishes and polishes. Hence, option C is correct.