Read the following passage and mark the letter A, B, C, or D on your answer

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29.
LIFE OF EARTH IN 2110
The worst prediction for the next century (25)________ the weather. Many people think that global warming will cause important environmental changes. There is scientific evidence that suggests cities on the coast may disappear if the sea level (26)________. There is better news regarding health. Medical advances mean that people will live longer. Doctors will be more successfully diagnosing an illness (27)________ of new technology. Infective diseases will disappear in many areas of the world and new drugs will be how to treat muscular aches and pains. Futuristic organ transplants will be easier. Finally, scientists think they are near to solving the mystery (28)________ to make people invisible. Technological progress will give experts the chance to manufacture invisibility cloaks, which may be (29)________ the market before the end of the century.