Which event always results in an increase in the total number of protons? alpha decay beta decay redox transmutation

The correct answer is option B. i,e beta decay.

Beta decay a neutron decays into a proton, an electron, and an antineutrino. Thus the number of protons increase i.e. the mass number remains the same but the atomic number increases. 

Thus, the beta decay results in an overall increase in the total number of protons.

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

Velocity is the speed of an object in a certain direction so you'd need to know speed and direction