PRECISO URGENTE!

Lela o texto a seguir:

"Toto played all day long, and Dorothy played with him, and loved him dearly. Today, HOWEVER, they were not playing. Uncle Henry sat upon the doorstep and looked anxiously at the sky, which was even grayer than usual.

A idela que a palavra destacada no texto traz e a de:

a) comparação
b) exemplo
c) causa e efeito
d) tempo
e) contraste​