Which is the most likely to happen first?

[Verona25]

Absence of any intermediaries or carrying out operations with bitcoins which exchanger server or another user can not by any chance do not intend to block the transfer or stop the system. Bitcoin is not damaged by the influence from outside ..

[yudhistira]

In curiosity, I know all of these can hack the price of Bitcoin, but the question is, which in your opinion is most likely to happen first?

Perhaps the most likely thing to happen first is for governments to declare a common "war" of the crypto world and forbid everything related to it. But in general only time will show. 

[BartS]

Goverments are unlikely to bad Bitcoin. I doubt they are not eager to use this new fancy technology.
As for the the Exchange hack, it happened and it's still going to happen.

They will do it if they think that their interests are affected, it's that simple you must remember that governments are not there to ensure the well being of their people that is not the reason they are there, they want to obtain power and anything that threatens that power is something they are going to be against, right now they're not forbidding bitcoin because they think they can get money out of it, once they realize that is not going to be the case and in fact are going to lose money because of it you'll begin to see a lot more serious talk about banning bitcoin.

[virasog]

In curiosity, I know all of these can hack the price of Bitcoin, but the question is, which in your opinion is most likely to happen first?

Block Chain hack can't bring bitcoin down , We can increase the security of wallet since the company don't want to lose their customers. I don't think its belongs to bitcoin's price. But i believe Government Ban can take bitcoins down in just seconds. Bitcoin's price got distributed in past when the china and south Korean's Government ban the use of bitcoins. More countries ban it more the price will fall down. If it happens it can destroy the bitcoin for sure but it is unlikely to happen.