Answer:
it is C
Step-by-step explanation:
that is the answer because
Three expression are there which makes it a trinomial
also because
Trinomial: An algebraic expression of three non-zero terms only is called a trinomial. Examples of trinomial: x + y + z is a trinomial in three variables x, y and z. 2a2 + 5a + 7 is a trinomial in one variables a.
