Which among the following pairs is/are correctly matched?Horst – Depressed block of planetary crust bordered by parallel faultsOceanic trench – Depressed block of planetary crust bordered by parallel faultsSelect the correct code from the options given below:

• A. Only 1
• B. Neither 1 & 2
• C. Only 2
• D. Both 1 & 2

Answer: (B)

Oceanic trenches are long and narrow depressions of the sea floor. They are the deepest parts of the ocean floor. They are a type of tectonic landforms.Horst is a raised fault block bounded by normal faults. The word Horst in Dutch and German means ‘heap’. It is a raised block of earth’s crust that has been lifted. It is a tectonic landform.