Most people don't like weeds. People spend a lot of time and energy ⓐ(try) to kill them.

 What's so bad about weeds? Weeds are disliked because they grow in places for flowers. People don't want them there. ⓑ_____, all plants can be weeds. In a cornfield, a rose is a weed, too.  When planted in a flower garden, ⓒit becomes a flower.