Which of the following sentences with respect to the passage is/are correct ? 1. All rich western nations have been seeing an increase in emigration from Africa over the past few decades. 2. Over the past thirty-five odd years, the number of African origin people living outside Africa has gone up by a factor of three. 3. The fierce resistance to labour incursion into the West will temper emigration from Africa in the 21st century. Select the answer using the codes given below :