[Hooper] Hooper Family Crest

[pqlur at eastlink.ca]

I've seen three different versions of a family crest for the 'Hooper' name. Can someone explain the difference between the three.

Here is a brief description of the one's I've seen for the Hooper last name:

a. White shield with red thick stripe going parallel across the middle with three 'hoops' or circles within this red thick red line and then three five point stars, one above this red line and two below;

b. Blue and white checked shield with a tower from a castle in the middle; and 

c. Yellow and black shield with three black boar and a thick black line going across the middle with 'hoops' or circles within this line.

Thanks in advance, 

Glenn Hooper
Nova Scotia