भू-आकृति विज्ञान में उपयोग की जाने वाली सरिता क्रम पद्धतियों में, सरिताओं को उनकी शाखाओं के आधार पर क्रमबद्ध किया जाता है। निम्नलिखित में से कौन सा विकल्प सरिता क्रम प्रणालियों को उनके प्रतिपादकों से सही रूप से जोड़ता है?

The crescent-shaped sand dunes found in Sam, Jaisalmer are scientifically known as:

With reference to fjords, consider the following statements: I. They are deep, narrow inlets carved mainly by glaciers and later occupied by seawater. II. The shallow sill near their mouth is generally associated with glacial deposition rather than with tectonic uplift alone. III. They are chiefly associated with high-latitude or formerly glaciated coasts, rather than with humid tropical landscapes. How many of the statements given above are correct?