The correct option is C A transgenic rice having gene for β-carotene
Golden rice is a transgenic variety of rice (Oryza Sativa) which contains good quantities of β-carotene ( provitamin A- inactive state of vitamin A). β-carotene is a principle source of vitamin A. Since the grains (seeds) of the rice are yellow in colour due to β-carotene, the rice is commonly called golden rice.