The correct answer is option C. Endocrine glands secrete hormones into the bloodstream because endocrine glands are ductless and the exocrine glands have ducts so they secrete their hormones into the ducts.
Conjugation is the process name !
We can determine whether a substance is a solute or solvent by looking if that substance dissolves or does the dissolving. Solvents are water, milk, ethanol, acetone etc while solutes are sugar, salt, coffee grounds etc
It has increase.
Hope this helps