Brown algae vary in colour from ___A____ to various shades of ___B____ depending on the amount of ____C___ pigment and ___D____ present in them.

	A	B	C	D
1.	fucoxanthin	xanthophyll	blue	brown
2.	blue	brown	fucoxanthin	xanthophyll
3.	yellow	brown	fucoxanthin	xanthophyll
4.	olive green	brown	fucoxanthin	xanthophyll

• A

  1

• B

  2

• C

  3

• D

  4