The example provided in Activity 4 shows how to rewrite sentences using possessives. 'What is your best friend's name?' is derived from 'What is the name of your best friend?'. Following this pattern, 'the shirt of your colleague' becomes 'your colleague's shirt'. Therefore, 'What is the colour of your colleague's shirt?' is the correct rewrite.
Class 6 › English Grammar and Composition › Chapter 4: Possessives › Topic: Activity 4: Rewriting sentences using possessives
Aligned to the NCTB national curriculum.