I hate to ask and sound stupid, but the drug or the basic chemical?
Answer:
science is different from many other ways of learning because of the way it is done. Science relies on testing ideas with evidence gathered from the natural world.
Hope this helps
The most appropriate answer is A !!
A function of the nucleus is D) Storing genetic material.
When someone is lactose intolerant, it means its intestine cannot absorb lactose, which will stay in the lumen and be consumed by intestinal bacteria and produced gases, that's why intolerant lactose people have flatulence and abdominal pain while eating food with lactose in it.
Let's go back to the question, before being consumed, lactose in the lumen intestine will attract water from the enterocytes to its side by oncotic pressure.
Do not confound oncotic pressure (which concerns macromolecules like sugar or proteins) and osmotic pressure (which concern micromolecules like small ions (sodium potassium and chloride...)).
