Reading passages

282- In the text it is pointed out that, in this present age, in many underdeveloped countries, ------ .
A) health care and other social services are more effective
B) women are still involved in physically demanding jobs
C) it is the women's responsibility to carry on the domestic activities only
D) child labour is no longer practised
E) spinning and weaving are the only major economic activities
If one wishes to glimpse the ancient trophies Pedra Furada, in a difficult, mountainous area of north- eastern Brazil, one must be prepared to fight intense dry heat, treacherous rocky ground, sudden flooding, boulders falling from cliffs, aggressive snakes and swarms of mosquitoes. It's worth it, though, for the archaeological treasures to be found there are exceptionally ancient. Rock paintings –vivid depictions of prehistoric ways of life, including dancing, hunting, war and sex rituals– have been dated at more than 12,000 years old, while curious pebble structures, primeval bonfires, early stone tools are up to 50,000 years old. The discovery of the remains had a profound effect on our knowledge of American prehistory, for they suggested that the first people in the New World arrived not via a bridge of ice from Siberia but by sea from Africa or possibly even Australia.
283- It is implied in the passage that Pedra Furada ------- .
A) is guarded and few people are allowed to see its treasures
B) is situated in an extremely hostile environment
C) is just one of many archaeological sites in Brazil .
D) has rock paintings depicting activities of Africans
E) is easily reached, especially during the summer months
284- We can infer from the text that the rock paintings in Pedra Furada ------ .
A) depict a wide variety of activities in prehistorical times
B) are far older than any of the other archaeological trophies in the world
C) were blackened by the smoke from primeval bonfires
D) are in a bad state of repair because of the dry climate
E) are of less interest than the early stone tools found in Brazil