Concept:The correct order for intensifiers before an adjective is "much too difficult", not "too much difficult".Explanation:The phrase "too difficult" means excessively difficult.The word "much" is used before "too" to strengthen it, giving "much too difficult", meaning very excessively difficult.The pattern "too much" is used with nouns, not adjectives. For example, "too much work".Therefore, the sentence becomes: "Last week's assignment was much too difficult for me."Answer:A. much too difficult