Pot mums (pot chrysanthemums) are varieties specifically selected or bred for their compact growth habit, floriferousness, and attractive form when grown in containers. They are often treated with growth retardants to maintain a short, bushy stature.
(A) Pusa Sona: This is a chrysanthemum variety. Some Pusa varieties are developed for various purposes including cut flowers or pot culture. If this is part of the correct answer, it's considered suitable as a pot mum.
(B) Tata Century: This is a well-known large-flowered, exhibition-type chrysanthemum, typically grown for cut flowers with long stems. It is generally not considered a pot mum variety due to its vigorous, tall growth habit.
(C) Snow Ball: This is a common name for many white, ball-shaped chrysanthemum varieties, often of the incurved or reflexed type, grown for cut flowers. While some smaller "button" types might be called Snow Ball and used in pots, the classic large-flowered Snow Ball is not a typical pot mum.
(D) Sadbhavana: This chrysanthemum variety, often with a yellow or light bronze hue, is known to be suitable for pot culture due to its dwarf nature and profuse flowering.
Based on common characteristics:
'Tata Century' and large-flowered 'Snow Ball' types are generally not pot mums.
'Sadbhavana' is known for its suitability as a pot mum. 'Pusa Sona', if included as correct, is also considered suitable.
Therefore, if option (4) (A) and (D) only is correct, it aligns with 'Sadbhavana' being a pot mum and suggests 'Pusa Sona' is also suitable, while 'Tata Century' and 'Snow Ball' are not.
(A) and (D) only.