Which of the statements concerning blood collection in mice and rats is true?

The correct option is this: POTENTIALLY LESS PAINFUL ALTERNATIVES TO RETROORBITAL BLOOD COLLECTION INCLUDE LATERAL SAPHENOUS AND JUGULAR VEIN BLOOD COLLECTION.
Rats are very important in research work and they are often used to test the effects of various substances in the body. To do this, blood has to be collected from the rats and this can be done in various ways. But some methods of blood collection is more painful than the others. Collecting blood from the  retro orbital vein is less painful compared to other methods.

Ihaven't done that yet, so no idea,but this is not the right place to ask

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the