HORTICULTURE

Detailed explanation-1: -The fruit Mango is a juicy stone fruit (drupe) belonging to the flowering plant genus Mangifera. Of the given options, only the mango fruit has one seed. The other fruits mentioned gave multiple seeds in the fruit.

Detailed explanation-2: -A fertilized ovule develops into a seed and ovary develops into a fruit. In some flowers, the ovary consists of only one ovule. Therefore Mango has only one seed. In some flowers, the ovary consists of many ovules which develop into many seeds like in Watermelon.

Detailed explanation-3: -Complete Answer: Hence, we can see that plants like mango and wheat have only one seed in their fruit thus indicating that there was only one ovule in the ovary whereas plants like papaya and watermelon have multiple seeds in their fruits thus indicating that there were multiple ovules in the ovary.

Detailed explanation-4: -Other fruits, such as avocados, plums, and peaches, have only one seed.