Which sentence is correct? Less than five per cent of students at Ivy League and other elite colleges come from families in the bottom twenty per cent of the income distribution. Less than five percent of students at Ivy League and other elite colleges come from families in the bottom 20 percent of the income distribution. Less than 5 per cent of students at Ivy League and other elite colleges come from families in the bottom 20 per cent of the income distribution. Less than 5 percent of students at Ivy League and other elite colleges come from families in the bottom 20 percent of the income distribution