Question

newer ocean - exploring robots, like sofi, are controlled from far away and do not need a cable - to - ship connection.
many of her parts were made by 3 - d printers, so sofi was easier and cheaper to make than earlier ocean robots. this means that making copies of sofi in the future should be even simpler and faster. rus hopes scientists will someday release schools of sofis into the seas to collect important information about ocean life.
sofi is an improvement over older undersea robots. older robots were tied to a boat by a cable, but sofi is designed for scientists in additio controlled by a diver unable to make noise
which details from the passage prove that sofi is better than older robots? fill in the blanks.

Explanation:

The passage mentions that SoFi is a newer ocean - exploring robot. It states that older robots were "tied to a boat by a cable", while SoFi "do not need a cable - to - ship connection". Also, it says that many parts of SoFi were made by 3 - D printers (which implies easier and cheaper production compared to older robots).

Answer:

SoFi is an improvement over older undersea robots. Older robots were tied to a boat by a cable, but SoFi is controlled from far away and does not need a cable - to - ship connection. Also, making copies of SoFi is easier and cheaper than earlier ocean robots as many of her parts were made by 3 - D printers.