Answer:
proibida entrada de animais
C. Was
It says "my parents or my older sister". The last subject stated is "my older sister" which is singular. And the only choice that's singular is 'was'. So that should be the answer.
Hi there mate!
Please check the two <u>attached images</u> for the answer, as per your question.
<em>Have </em><em>a </em><em>great</em><em> </em><em>day!</em>