Question

What is antimatter?

a.
Antimatter is the absence of matter
c.
Antimatter is made up of neutrons and electrons but no positive particles
b.
Antimatter has no nucleus
d.
Antimatter has a nucleus that is negatively charged and has positive particles that orbit which are called positrons

Answer 1

Your answer will be C Antimatter is made up of neutrons and electrons but no positive particles because everything is made of atoms and those atoms have electron's, neutrons , and protons.                                                                                                                      Your answer is C.

Answer 2

the answer would be c.
Antimatter is made up of neutrons and electrons but no positive particles

Hope this helped