4. According to their size; boulder, pebble, clay, cobble, sand can be arranged as a) Boulder Clay Sand>Pebble Cobble b) Boulder Sand>Clay>Pebble>Cobble c) Boulder Sand>Cobble>Pebble>Clay d) Boulder>Cobble>Pebble >Sand>Clay
e) Boulder>Cobble>Peblile>Clay>Sand
f) Boulder>Pebble>Cobble >Clay>Sand