8. [1+2+2 points] What is the closure of a relation? Write in your own language without copy pasting from slide/book/website. Assume, relation R on A = {1,2,3,4} to itself as follows. Now, calculate the (a) Transitive and (b) Reflexive closure of R. 0 1 0 0 1 1 0 0 0 0 1 0 0 0 0 0