In 1973 mortgages payments represented twenty-one percent of an average thirty-year-old male's income;and forty-four percent in 1984 a) income;and forty-four percent in 1984 b) income;in 1984 the figure was forty-four percent c) income,and in 1984 forty-four percent d) income,forty-four percent in 1984 was the figure e) income that rose to forty-four percent in 1984 请问D中的in 1984为什么awkward and confusing?谢谢!!