Reading passages

176- According to the passage, not many British artists thought that watercolour ...................... .
A) had been overworked for many decades
B) and oil painting were equally effective as mediums for the portrayal of human feelings
C) had always been more significant than oil painting
D) was only to be used as a hobby on holidays
E) was an ideal art form for representing nature in its various shades and colours
177- The passage illustrates clearly how ................ .
A) watercolour has changed landscape painting in Britain
B) watercolour slowly gave way to oils as an art form
C) British art galleries have collected their oil paintings and watercolours.
D) watercolour has come to be recognised in Britain as valid art form
E) watercolour is different in style and execution from oil painting
The unfavourable effects of cigarette smoking on the heart have usually been discussed, but the exact basis for these effects has not been clarified. Some believe nicotine to be the culprit, and there has been some experimental work in animals indicating that large doses of nicotine in conjunction with cholesterol feeding and vitamin D could cause a disease of the arteries resembling that observed in humans. An alternative explanation has been offered by other investigators who have pointed to the possible role of carbon monoxide being inhaled with the cigarette smoke.
178- It is explained in the passage that nicotine .................... .
A) hits animals more seriously than humans
B) is the only dangerous factor in relation to smoking
C) has a negative effect only upon the arteries
D) is considered by some investigators as one of the reasons why smoking has an adverse effect on the heart
E) has been considered more dangerous than carbon monoxide for smokers
179- According to the text, studies into the adverse effects of smoking .................... .
A) have proved any relationship between smoking and cholesterol levels in humans
B) have illustrated that vitamin D reduces nicotine in the body
C) have not been able to establish for certain whether or not carbon monoxide could be a main factor
D) have so far not raised any controversial ideas
E) show that nicotine and carbon monoxide may be only minor factors