Because Tini is pregnant without an official husband?
Menjaga also means to look after but the answer says it is not the correct answer
Non-native hunch incoming
Menjaga means to look after as in protect and guard the object
Merawat means to look after as in take care of the object by feeding it and making sure it gets its milk...you get the idea
Why is she la and not dia?
Ia and dia have the same meaning. It's just matter of being formal and informal.