Will I receive bitcoin cash automatically or will there be an option I have to choose? Also, do I keep both bitcoin and receive bitcoin cash or will I have to EXCHANGE bitcoin for bitcoin cash? Thanks in advance fellow bitcoiners.
With blockchain.info you hold your own private keys, therefore you can claim the airdrop on August 1st. I think that it is more appropriate to call bitcoin cash an altcoin rather than a fork.
However blockchain.info will probably only have support for one coin. It is likely that you have to download the actual bitcoin cash client or using another supporting wallet to claim your bitcoin cash tokens.
You don't need to exchange anything, there is a snapshot taken on the day of the fork. There is really no work to be done. It's just like the stellar and byteball airdrops, all you need to do is to import a private key with coins in it on the snapshot time.