Under Article XII, Section 2, the President may enter into agreements with foreign-owned corporations involving technical or financial assistance for large-scale exploration of minerals, petroleum and other mineral oils. The President must notify Congress of every such contract within:

The correct answer is B. 30 days from its execution

The fourth paragraph of Section 2 requires the President to notify the Congress of every contract entered into under that provision within thirty days from its execution. These are often called financial or technical assistance agreements.