Is there all of the above, if there isn't it is B: the coded blue print to life. because it contains it.
D. Ligaments are strong and flexible bands of connective tissue that holds bones together meeting at a point known as joints. The first option - tendons - is also a connective tissue but they attach muscle to the bone.
It is true that earth is consist of 70% water. However it is still a problem that in the near future, their might be a water shortage that will happened. This is because now mostly of our water sources are no longer clean. Our water are polluted and when time will come water will be very pricey
D or aka changes in the moons orbit
Hope this helps you