Which of the following represents a combination reaction? Select one:

a.
AB --> A + B

b.
AB + CD --> AD + BC

c.
A - B --> C

d.
A + B --> AB

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

sorey ik so sorey i need and need to answer a few