Explanation:

• During the Sao Joao festival in Goa, people celebrate with music, dance, and unique traditions.

• One popular custom is the exchange of gifts, especially during the festival.

• ??The correct answer is option:1 - fruits. People present seasonal fruits to each other as a sign of abundance and gratitude.

• Beer (option:2) is commonly consumed during the festivities, but it is not traditionally exchanged as gifts.

• Fish (option:3) is a staple in Goan cuisine, but not particularly given as Sao Joao presents.

• Flowers (option:4) are used for decorations and garlands, but not specifically for gifting during Sao Joao.