The correct answer is option A - irregular , Option B- elliptical and option D - Spiral
Reason -
According to astronomer Edwin Hubble, the galaxies in our universe have four classes namely - spiral, barred spiral, elliptical and irregular.
Spiral galaxies have a bulge shape at the center while the edges are flattened, A barred spiral galaxy has a bar-shaped stars' group that move around the center of the galaxy, Elliptical galaxy has smooth, oval-shaped appearance without disk and arm and Irregular galaxies are neither spiral nor elliptical.
