10 - Which of the following matrix represents the symmetric closure of R? 53 MR = 1 0 1 0 0 1 0 0 0 0 1 1 1 0 0 1 1) II) MR = 1 1 1 1 1 1 0 0 1 0 1 1 11 0 1 1 MR = 1 0 1 1 0 1 0 0 1 0 1 1 1 0 1 1 MR = 1 0 1 0 01 00 0 0 1 1 1 0 0 1 a) O MI b) O 11 c)