Step 1: Understanding botanical classification
Ficus benghalensis belongs to Moraceae, and its fruit is Sorosis.
Oryza sativa belongs to Poaceae, and its fruit is Caryopsis (Correct).
Mangifera indica belongs to Anacardiaceae, but its fruit is Drupe, not Pome (Incorrect).
Citrus sinensis belongs to Rutaceae, and its fruit is Hesperidium (Correct).
Step 2: Evaluating the options
Option (1): Incorrect, as I is correct, but II is correct.
Option (2): Incorrect, as II is correct, but III is incorrect.
Option (3): Incorrect, as III is incorrect.
Option (4): Correct, as II and IV are both correct.
Final Answer:
\[
II { and } IV
\]