The first detailed study of magpie attacks in Australia indicates that by the time they had reached adulthood, 98% of men and 75% of women born in the country have been attacked by the birds. a) by the time they had reached adulthood, 98% of men and 75% of women born in the country have been attacked by the birds. b) by the time they reach adulthood, 98% of men and 75% of women, who were born in the country, had been attacked by birds. c) by the time they reached adulthood, 98% of men and 75% of women born in the country had been attacked by the birds. d) 98% of men and 75% of women that were born in the country were attacked by the birds by the time they reach adulthood. e) 98% of men and 75% of women who were born in the country, by the time they reached adulthood had been attacked by birds.