Which change would you have to make to the underlined portion to correctly combine these two sentences

1)a

2 b

3 d

4 d or b

explanation:

it could change in many ways and by that i mean income can go lower or higher depending on how hard you work. i hope this .

i believe that is the truth if thats what you where asking for

tu caminas en las clase de educacion fisica.

its translates: do you walk in in your physical education class?