A fold shaped like an elongate trough is an A. Anticline.
What is an elongate trough?
An elongate trough forms the deepest part of a surface undulation with a subparallel trend to an adjacent trough.
An anticline is an arch-like shape with its oldest beds at its core, curved upward. An anticline is an inverse of a syncline, which is curved downward.
A. Anticline
B. Basin
C. Dome
D. Syncline
Thus, a fold shaped like an elongate trough is an A. Anticline.
Learn more about an anticline at https://brainly.com/question/13147167
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