An example of a transform (strike-slip) plate boundary is b) San Andreas fault.
C is the answer.
;;;;;;;;;;;;;;;
Frances most succesful colony was canada
It's being estimated that dinosaurs lived on Earth from about 237 million years ago to about 66 million years ago. So answers B and D are definately too "old", while answer A is too "young". I'd pick answer C as it's most probable.
The best answer to the question presented above would be the first statement. Stalactites are chemical sedimentary rocks that form when the minerals in the cave are left behind by the water. They saturate and form into these stalactites.