If R be an equivalence relation on the set, A={6,7,8,9,10} defined by,
R={(6,6),(7,7),(8,8),(9,9),(10,10),(6,7),(7,6),(8,9),(9,8),(9,10),(10,9),(8,10),(10,8)}, its partitions are
a) {{6},{7},{8,9},{10}}
b) {{6,7,8},{9,10}}
c) {{6},{7,8},{9,10}}
d) {{6,7},{8,9,10}}