Hello.
Here is your answer:
Combustion reaction should go to.... Mike driving his car which is burning fossil fuels.
So.....
A--->A
Photosynthesis should be too growing tomatoes!
So.....
B-->B
And that's should leave respiration to eating eggs!
C--->C
In conclusion your answers are:
A---->A
B----->B
C------->D
Hope this helps.