Consider the following, and make the same assumptions: 1. How often we need to update, insert, and delete records 2. How fast is the worst case search or scan 3. The most frequent types of lookups: single unique key, range, or full scan For which of these workloads should we use heap files over sorted files? Assume the operations listed in the answer choice are the only operations that we will do.

From the following responses, select the statement that is grammatically incorrect. a. i forgot my umbrella today and became sopping wet on my way to work. b. because i forgot my umbrella today, i became sopping wet on my way to work. c. today i forgot my umbrella, on my way to work i became sopping wet. d. having forgotten my umbrella today, i became sopping wet on my way to work. e. i forgot my umbrella today; hence, on my way to work i became sopping wet.