In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
Possessing even a single nuclear weapon acts as a _________________.
A Phospholipid is a lipid molecule which has hydrophilic head and a hydrophobic tailand and is a main component in making of all cell membranes in which they two form a parallel layers called Phospholipid bilayer.