Sir, how to guess the answer "in the vertical section of a volcanic sequence showing pilow structures is shown in the given figure". ans given is "c" option.

Dear student, the answer should be option C. As you can see that the strata is dipping so it must be a part of anticline or syncline. Now you have the look whether it's an anticlin...

This is a normal phenomenon as the younger direction is shown by diping direction of convex side of the pillow basalt

may be because I didn't not find any relationship among them . and also perhaps They are different time eruptions