A、because 98 % abortions were carried out before 20 weeks B、because pregnancy can be diagnosed earlier than before C、because sur

A controversial debate over whether to change the upper time limit for abortions will return to the House of Commons later for the first time since 1989. Under current laws a woman can have an abortion up to 24 weeks into her pregnancy. Most abortions are carried out long before this upper limit is reached—less than 2% are performed after 20 weeks.
  However with improved survival rates among premature babies, there is growing pressure to reduce the upper time limit for abortions to 20 weeks.
   Some medical experts believe lowering the abortion time could have a serious impact on the diagnosis of fetal abnormalities. This could result in more abortions they say.
   It is such a highly controversial and emotive issue, that the British Medical Association recently chose not to change the upper limit.
   But there is growing support for a scientifically based inquiry to determine just what is acceptable and what is not when it comes to abortion.
    Questions 7 and 8 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions.
   Now listen to the news.