I want to solve the question quickly

Q3/ Select the correct answer of the following: (25M) 1. Which of the following statements is correct? a) Function clear all" clears all assigned variables b) Function "cle" clears all variables e) Function "ele" clears only constants d) Function clear all" closes all figure windows 2. Which of these is the way to access the first element in a vector named v? a) v (0) b) (1) c) v d) (:,0) 3. Which of the following expressions generates a loop from 50 to 100 and spaced between them is 10 a) for i=50:10:100 b) for i=100:10:50 e) for i=50:100:10