Which of these lines can be rewritten as an if-then relationship?

service technicians will respond within 24 hours. we pride ourselves on rapidly resolving your problems.

see if the light is red or not illuminated at all. now, check that the ethernet cable connecting the router and computer is securely attached.

to reduce interference (not connectivity), place the wireless router away from computers, televisions, microwaves, and cordless phones.

insert the ethernet cable from the modem into the internet port on the xbbt872 wireless router

the question concerns exactly this part of the speech:

i am not now thinking of the loss of property involved, immense and serious as that is, but only of the wanton and wholesale destruction of the lives of non-combatants, men, women, and children, engaged in pursuits which have always, even in the darkest periods of modern history, been deemed innocent and legitimate. property can be paid for; the lives of the peaceful and innocent people cannot be.

president wilson talks about the lives of people destroyed by german army. but these people are not americans, they are the local people living in europe. the president mentions the barbarity of germans, considering that he is not targeting the nation, instead it is said about german army. the correct answer is the last one.

a,b,d are the three sentences that use a reflexive pronoun