how do i defend against D4

when u win let us  know  ok 

Define what your version of a "good opening" is. It's hardly likely anyone who doesn't know you will be able to recommend a "good opening" for you. A lot of this depends on whether you like to attack, defend or counter-attack; and whether you prefer open, semi-open or closed games.

Considering your rating I suggest 1...d5 and concentrate on one opening as much as possible until it becomes clear that it is/isn't suitable for you. You could try QGA when possible and otherwise you'll just have to learn how to deal with "none QG" openings such as the Torre Attack, Stonewall Opening etc. 

And of course you need to concentrate on middlegame and endgame principles as much as possible, try not to slavishly memorize opening lines just try to focus on the basic ideas of whatever openings you're playing for now

GOOD LUCK!

I recomend the Nimzo Queens Indian tandem very solid and dependable but offer great winning chances.

You can try the Indian defenses or play decline the queens gambit.

Too many to mention. I usually play the slav with d*c4 for black. Or a slav with a6. The Queens indian and Nimzo-indian also seem to equalize easily for black. For instance I hate playing against the Nimzo as white so i play Nf3 for a Queens indian. I also started playing the Benko gambit recently. Don't bother with the King's Indian or Benoni formations for now. Too complicated and you could get crushed quickly if you don't know what you are doing. As for the Grunfeld, too much theory and if you don't understand the theory you get beaten easily. 

bogo indian and nimzo indian are nice defences against d4

sam the soccer man, please SHUT UP d4 defence i is something to do with caro cann, to bad u wrote it. cya at school.

someone comment and tell me if im a good friend to soccer man

Caro Kann is best against d4

thx gys for the help i have experimented widely and am happy to say i finally picked my defence........the nimzo indian