Step 1: Analyze each characteristic and match with the fruits.
A. Multicarpellary syncarpous, unilocular ovary with stony pericarp
Cashew has a unilocular ovary and stony pericarp (the nut’s shell), though it is typically monocarpellary, not multicarpellary. Annona and Apple are multicarpellary syncarpous but multilocular with fleshy pericarps. Cashew fits the stony pericarp and unilocular aspects best.
Match: A $\rightarrow$ Cashew.
B. Fruit with fleshy thalamus and developed by inferior ovary
Apple is a pome with a fleshy thalamus forming the edible part, developed from an inferior ovary. Cashew and Annona have superior ovaries.
Match: B $\rightarrow$ Apple.
C. Apocarpous gynoecium develops into fruitlets
Annona (custard apple) has an apocarpous gynoecium in early development, forming an aggregate fruit of loosely united fruitlets. Cashew is monocarpellary, and Apple is syncarpous.
Match: C $\rightarrow$ Annona.
Step 2: Sequence the fruits.
A: Cashew, B: Apple, C: Annona.
So, the sequence is: Cashew, Apple, Annona.
Step 3: Check the options.
Option (3) Cashew, Apple, Annona matches our sequence.
Step 4: Verify option (4) as requested.
Option (4) is Apple, Cashew, Annona:
A (Apple): Incorrect; Apple has a multilocular ovary and fleshy pericarp, not stony.
B (Cashew): Incorrect; Cashew has a superior ovary, not inferior.
C (Annona): Correct; Annona fits apocarpous fruitlets.
Option (4) is incorrect due to mismatches in A and B.
Final Answer: (3) Cashew, Apple, Annona.