Which of the following statements is/are false? (1) The yellow pigment used in the Alzheimer's disease is obtained from Curcuma longa is curcumin. (2) The colouring pigment of harsinghar is nictanthin. (3) Safflower contains juglone as colouring pigment.

(1) Curcumin obtained from Curcuma longa is a rhizomatous herbaceous perennial plant of the ginger family, Zingiberaceae. It has antioxidant, anti-inflammatory, anti cancer and hepatoprotective properties. The phenolic yellow curcumin pigment is successfully used in the Alzheimer's disease medication by Ayurvedic preparation. (2) Nyctanthes arbortristis or locally Harsinghar is a shrub that belongs to the family Oleaceae, found abundantly on the Himalayas and cultivated in the rest of India, Burma (Myanmar) and Sri Lanka (Ceylon). The chief colouring pigment of harsinghar is nictanthin. (3) Carthamus tinctorius (Safflower) is an annual herb belonging to the family Asteraceae. Carthamus tinctorius contains carthamin as colouring pigment. The walnut (Juglans regia), belongs to the family Juglandaceae. Juglone is the main colouring component of walnut.