Match the List I with List II with respect to lac operon

In lac operon, gene y is expressed to form transporter protein known as permease (symporter) that actively transports lactose into a cell. Gene z is expressed to form a hydrolase known as β-galactosidase, gene a is expressed to form a transferase known as transacetylase. Gene i has information for the formation of repressor protein of lac operon that can bind to operator to prevent the transcription of structural genes of lac operon.