Which is the correct group of secondary colours?

Correct answer: Orange, green and violet

The governing concept is secondary-colour formation in the traditional paint colour system. Each secondary colour is made by mixing two primary colours: red plus yellow gives orange, yellow plus blue gives green, and blue plus red gives violet. Therefore option B is correct. Option A lists the primary colours, while black, white, grey, pink, brown and cream are not the complete standard group of secondary colours.