Concept:This is a permutation of letters where one letter repeats.Explanation:The word LEADER has 6 letters in total.The letters are: L, E, A, D, E, R.The letter E appears 2 times, and all other letters appear once.Number of arrangements is given by the formula:2!6!=2720=360So the letters can be arranged in 360 distinct ways.Answer:360 ways (Option C).