Which sentence has the correct subject-verb agreement?

scientists who study the universe has several theories about the rings around planets.
saturn, which is the sixth planet from the sun, rotate every 10 hours and 14 minutes.
saturn, along with jupiter and uranus, has rings that encircle the planet.

Vvnici prece di evidence would best support teason #to the history of using animals for research extends asfar back as 322 bce, when early greek physician-scientists, such as aristotle and erasistratus, performed various experiments on living animals.0 animal research played an essential role in thedevelopment of herceptin and tamoxifen, twomedications that have already saved the lives ofthousands of women who have been diagnosed withbreast cancer. even those who believe in testing on animals when it isnecessary for vital medical research practice what isknown as "the 3 rs"-reduction, refinement, andreplacement to reduce the number of animals usedfor testingbiologists believe that chimpanzees share at least 98.4percent of the same dna as humans and gorillas shareat least 97 percent, making primates a popular andlikely choice for the testing of products intended for humans

Then she heard his step on the stair away down on the first flight, and she turned white for just a moment. the phrase "she turned white for just a moment" is mainly used to show that della has very fair skin. is afraid of jim's reaction. is beginning to get an illness. had become extremely angry.

Which sentence is an example of an i-statement? a) this is by far the worst report you have ever submitted b) your report has so many mistakes that we can’t use it c) i am unhappy to learn that you overlooked crucial details in the report. we just lost a potential client d) i guess the person who wrote this repost didn’t understand the consequences of submitting poor quality work