I got that 'je' as personal pronoun object can be either 'it' or 'them'. Same for 'ně' if used after the preposition. Out of context is there a way to determine if the object is either singular or plural?
As a native, I'd understand it as referring to plural. Singular 'it' would be more likely expressed using 'to'.
How do we know "je" doesnt mean "it" in this exercise as it is in the previous one? Inconsistencies in the same section isnt great, espwcially with "je" already being complicated.
"It" is also accepted, as there is no context to suggest which is meant. Generally, if the original sentence is not specific, multiple appropriate translations are accepted.