What is an aerospace engineer? which one is it

1.the branch of engineering dealing with the environment
2.the branch of engineering dealing with flight of aircraft and spacecraft
3.the branch of engineering dealing with under the ground
4.the branch of engineering dealing with under water

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.