A linguistic element that is added to the end of a word or base word is called a suffix. The correct answer is option A. Suffixes are connected at the end of the word in order to create a new word with a new meaning. Prefixes have the same function too, but prefixes are connected at the beginning of the word.
In sentence 3. It should be
Discouraged by this, Loraine walked four blocks to a coffee shop.
When making an inference, it’s important to separate fact from opinion - an inference is, after all, based on evidence and reasoning.