In the lac operon model, lactose molecules function as:-

1. inducers, which bind with the operator
gne

2. repressors, which bind with the operator
gene

3. inducers, which bind with the repressor
protein

4. corepressors, which bind with repressors
protein

In which of the following combinations, the compounds in ascending order based on their molecular weights are arranged?

(1) DNA, RNA, AMP, ADP, ATP

(2) DNA, RNA, ATP, ADP, AMP

(3) AMP, ADP, ATP, RNA, DNA

(4) AMP, ATP, ADP, DNA, RNA