Global positioning system (GPS) is associated with 1. determining latitude and longitude 2. constellation of satellites 3. US system of GPS and Russian system of GLONASS 4. navigation Select the correct answer using the code given below:

• A. 1 and 4 only
• B. 1, 2 and 4 only
• C. 2 and 3 only
• D. 1, 2, 3 and 4