Read the sentences below and answer the question.
Rosa is such a nice person to tutor me in science. I bought her flowers to say thank you.
Choose the sentence that correctly combines the two sentences.
1 Rosa is such a nice person to tutor me in science but I bought her flowers to say thank you.
2 Rosa is such a nice person to tutor me in science so I bought her flowers to say thank you.
3 Rosa is such a nice person to tutor me in science, so I bought her flowers to say thank you.
4 Rosa is such a nice person to tutor me in science , but I bought her flowers to say thank you.
5 Rosa is such a nice person to tutor me in science or bought her flowers to say thank you.