Google and other organizations are continuously trying to develop and enhance other solutions that don't inconvenience real humans, like invisible captcha.
Till then please bear this inconvenience, it is to protect the website from bots and hacking attacks, and ensures that you are able to use and enjoy the website next time you visit.
The ones that get me are the ones where you have to 'interpret' the 'letters' that look like they were drawn by a two year old, only for the 'programme' to 'reject' what you see as the letters in front of you !