Let a = log2 3, b= log2 5 and c=log? 7,A. Write the following in terms of a, b and ci. (K:2) log? (45): 2a+b-cii. (K:2) log? (52.5): a+b+c-1B. (1:2) A student write the answer as log? (X) = 2a-3b+c-1, find the value of X:(write the number in fraction, if write as 7/8)C. (C:2) Assume that a positive integer Q is between 1 and 20. Find all possible values of Q such thatlog? Q cannot be expressed using a, b and c (such as 1, 2, 3, 4, etc):The reason is because