the question is asking how much are the shirts but i don't know what your asking.
Answer:
The answer is 'conducen' if it's present tense.
'condujeron' if it's past tense.
'conducirán' if it's future tense.
'están conduciendo' if it's present continuous.
Explanation:
Answer by JKismyhusbandbae: Porque interrumpen la armonía familiar.
Hope this helps~