Among the following words, the choice that you need to double the final consonant before adding the suffix to the base word is, shop + -er. The word shop plus -er becomes shopper with the double consonant p. The rule applied here is that, if the word is only one syllable and ends in a vowel and consonant, double the last letter before the vowel suffix.
An Indian rebel would think:
These people give us little freedom.
They hunt our animals and use only the meat.
Taxes on everything.
Strange customs and rules.