PLZ HELP ME FAST Identifying Parts of a Chemical Equation

A green box contains a blue box and a pink box. The blue box contains C H subscript 4 + 2 O subscript 2. An arrow then leads in the green box to the pink box, which says C O subscript 2 + 2 H subscript 2 O. Lines lead from labels to parts of the boxes. Label A leads to the beginning of the green box. Label B leads to the + in the blue box. Label C leads to the arrow. Label D leads to the 2 in 2 H subscript 2 O. Label E leads to the end of the pink box.

Identify each part of this chemical equation, which describes the burning of methane and oxygen.

A (the entire green box):

B (the blue box):

C (the arrow):

D (the number):

E (the purple box):