Select the phrase/connector from the given three options which can be used to form a single sentence from the two sentences given below, implying the same as expressed in the statement sentence.
I would love to visit Italy because of two reasons. They have great pizza.
1) firstly
2) secondly
3) thirdly
1
Only 1
2
Only 2
3
Only 3
4
Both 1 and 2
5
Both 2 and 3