In the text,the term “spark” (l.8) is used in its connotativ...

O termo "spark" (=fagulha, centelha) foi usado em sentido conotativo (=figurado, em sentido diverso do original).

spark
Definition
› a very small bit of something burning that flies out from a fire, or a flash of light seen when an electric current crosses an open space:
Flame, smoke, and sparks climbed into the dark sky.
Sparks from the old wiring started the fire.
fig.No one can light the spark that will make you a writer (= the thing that causes you to write).
› A spark of something is a small amount of it:
When students show a spark of interest, I try to give them extra encouragement.
 

c-

connotative, figurative meaning - nonliteral.

TEC

Tradução: O termo "spark" foi usado em sentido conotativo.

A fagulha (spark) de amizade entre eles havia sido mantida viva: “The spark of friendship between them had been kept alive…”

O sentido conotativo é o figurado, que difere do original. O item está CERTO