Let L be the line given by the span of [[-8],[7],[8],[-2]] in R⁴. Find a basis for the orthogonal complement of L. A basis for is...
a) [[0],[1],[0],[0]], [[0],[0],[1],[0]],
b) [[1],[0],[0],[0]], [[0],[1],[0],[0]],
c) [[1],[0],[0],[0]], [[0],[0],[0],[1]],
d) [[0],[1],[0],[0]], [[0],[0],[0],[1]]