Is me black or not yir

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Iknow #2 is d. i just need to know why

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?