Some parts of a sentence have been jumbled up, and labelled P, Q, R and S. Select the option that gives the correct sequence in which these parts can be rearranged to forma meaningful and grammatically correct sentence.

After Gandhi

P: because he was a colored person travelling in first-class,

Q: was thrown off a train

R: for injustices that many people of color faced

S: he took that emotion and used it to commence the fight

at the time.