Select the best topic sentence. Did you know that the colorful rings of the Olympic flag were designed to unify the countries participating in the games?

Explain the colors of the rings on the Olympic flag.

Unifying countries designed the Olympic flag.

The colorful rings on the Olympic flag have symbolic meaning.

Read the excerpt from part 2 of zeitoun. zeitoun woke with the sun and crawled out of his tent. the day was bright, and as far as he could see in any direction the city was underwater. . he could only think of judgment day, of noah and forty days of rain. and yet it was so quiet, so still. nothing moved. he sat on the roof and scanned the horizon, looking for any person, any animal or machine moving. nothing. as he did his morning prayers, a helicopter broke the silence, shooting across the treetops and heading downtown. why does the author include the details of zeitoun’s morning? to suggest the hopelessness of zeitoun’s situation to illustrate the solitary existence endured by survivors to establish zeitoun’s dedication to the rituals of his faith to reveal the military’s attempts at assistance

Besides the skull and cross bones what other shape sometimes appeared on flags flown by pirates?

Which big-picture idea comes logically from these details?