In which sentence does the underlined word have the most negative connotation?

Question

A.
Three years later, Carlos and his men returned from the long journey.

B.
Three years later, Carlos and his men returned from the grueling journey.

C.
Three years later, Carlos and his men returned from the brief journey.

D.
Three years later, Carlos and his men returned from the painless journey.

Answer 1

The sentence in which the underlined word has the most negative connotation is:

B. Three years later, Carlos and his men returned from the grueling journey.

"Grueling" implies that the journey was extremely difficult and exhausting, which carries a negative connotation compared to the other words.