Appropriate body language during a presentation includes . a
avoiding unnecessary movements
b
dressing as formally as possible
c
avoiding eye contact with the audience
d
refraining from any facial expressions

a Its letter a brainliest plzzz I'm working toward expert

answer; (73%);

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.