This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
Strongest bond out of the following is - 
Select and explain. 
A. Electrostatic, B. Hydrogen, C. Hydrophobic, D. Vanderwall's
A: Electrostatic
Answer: A: Electrostatic 
Explanation: Amongst the given options, electrostatic bonds are strongest. Strength of various interactions (in decreasing order)

Covalent (strongest) Electrostatic  (ionic or salt linkage) > hydrogen> hydrophobic > Van der waal's (weakest)