Answer:
A possessive noun -or noun phrase- shows ownership by adding an apostrophe and an "s" to the noun. If the noun is plural and already ends in -s, then only an apostrophe is required.
In this case, the nouns that express possession are Bradley and Carmine, because they are the ones who own the store, so to turn these phrases into possessive noun phrases one should add "'s" to those words.
Therefore, the correct answer would be: Bradley's store and Carmine's store.
