A. Pitting corrosion
B. Soil corrosion
C. Water line corrosion
D. Galvanic corrosion
The question was asked by my school teacher while I was bunking the class.
My doubt is from Types of Corrosion and Passivity in chapter Electro Chemical Cells and Corrosion of Applied Chemistry
Explanation: Corrosion due to the formation of cavities around the metal is called as the pitting corrosion. Corrosion between the dissimiliar metals is called galvanic corrosion.