💡 Detailed Explanation
The correct choice is Option 1: 'Understood. Take care on your way.' When someone apologizes for being late ('遅れそう'), it is polite and supportive to acknowledge it ('わかった') and show concern ('気をつけて来てね' - please come safely/take care). Option 2 ('どうして。早く来て' - Why? Come quickly!) sounds demanding and harsh. Option 3 ('よかった。間に合ったね' - Great, you made it in time!) contradicts the situation, as she just said she is going to be late.