Questão
Simulado EEAR
2021
VER HISTÓRICO DE RESPOSTAS
AVICII-FEAT-ALOE-BLACC92711661e1
AVICII (FEAT. ALOE BLACC) -WAKE ME UP 

Feeling my way through the darkness
Guided by a beating heart
I can't tell where the journey will end
But I know where to start

They tell me I'm too young to understand
They say I'm caught up in a dream
Well, life will pass me by if I don't open up my eyes
Well, that's fine by me

So wake me up when it's all over
When I'm wiser and I'm older
All this time I was finding myself
And I didn't know I was lost

Adapted from https://www.letras.mus.br/

The word “beating”, underlined in the text, works as
A
a verb.
B
an adverb. 
C
a noun. 
D
an adjective.