6. A and, possibly, D. If you want to be absolutely safe, go for A. You're not starving to death, so adding the berries to your diet is not a matter of life and death. Color doesn't tell the whole story. There are deadly red berries as well as perfectly edible ones. To be safe, you must know which is which before tossing it in your mouth. If you like to live on the edge, you might do a taste test of one berry and then wait an hour to see if there are any ill effects (although I don't recommend this method). Edible wild raspberries, blackberries, salmonberries, gooseberries, thimbleberries and others are common--even prolific--in some forested areas. Get to know these plants before your trip.