answer all questions with explanation

d) Consider a set H consisting of all alphabets available in English language. The number of elements of H is 26. A special set B of alphabets is defined as B = {h, i, j, k, I}. Consider all possible words that can be built out of 26 alphabets ( from H) having word length exactly equal-to six. (i) How many of these words contains atleast one letter from B. (ii) How many of these words have exactly two letters from the set B. (2)