Generate All Possible Answers From Groups of Values

I have multiple groups of values that I need to generate all the possible combinations from. I have two parts to my question:

1. The best way to store these values. (Hashtable, DataTable, etc.)
2. Fastest way to generate all the possible combinations.

I have multiple groups with different values. (Randomly generated)

Example:

G1   G2   G3
============
A     R     X
B     S     Y
C     T     Z

The final answer is created by 1 value from each group in order. G1-G2-G3
Example Answers:

A-S-X
or
B-R-Z

I need to generate all the possible answers.

Thanks for the help!
icosupportAsked:
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Mike TomlinsonConnect With a Mentor Middle School Assistant TeacherCommented:
Your request is almost the same as this one:
http://www.experts-exchange.com/Programming/Programming_Languages/Q_21116627.html

Several different approaches there that you can use.

Idle_Mind
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