Fun little experiment

Answer the following two questions.

Please limit your answers to the options provided. No explainations from you needed at this point. Just a one-letter response is sufficient. Please do not post questions. Instead message them to me.

Ok here goes.

The following description applies to both questions.

There is an urn that contains 300 balls. 100 of the balls are red and 200 of the balls are either blue or green (Note: This does not imply that all 200 balls are the same color. It may be that some are blue and the others green. Maybe all are green. Maybe all are blue.)

Now there are two gambles, Gamble A and Gamble B.

Gamble A: You receive $1,000 if the ball is red.
Gamble B: You receive $1,000 if the ball is blue.

Which gamble do you prefer?

Ok. Got one?

Now consider two different gambles.

Gamble C: You receive $1,000 if the ball is not red.
Gamble D: You receive $1,000 if the ball is not blue.

Which gamble do you prefer?

Please give your first responses to the questions (i.e. Please do not reconsider any question after answering it.)

Thanks for you participation.

I'll keep a tally and fill every interested party in on this in a day or two.

This thread has been moved to the Puzzlers etc. forum. Please reply there if you are not a mod. If you are a mod, please delete this thread and then go to the Puzzler's forum and answer the questions posed above.
Thanks.

Originally posted by telerion

Answer the following two questions.

Please limit your answers to the options provided. No explainations from you needed at this point. Just a one-letter response is sufficient. Please do not post questions. Instead message them to me.

Ok here goes.

The following description applies to both questions.

There is an urn that contains 300 balls ...[text shortened]... icipation.

I'll keep a tally and fill every interested party in on this in a day or two.