which country Set world record by planting 541,176 saplings in a single day which has been duly recorded in the Guinness Book of world record in 2009?
A. China
B. Canada
C. Pakistan
D. United States of America
28 July 2009: The UN Environment Programme (UNEP), as part of its Billion Tree Campaign, has announced that Pakistan has set a Guinness World Record for planting 541,176 trees in 24 hours.