Which of the following pairs are correctly matched? 1. Brune's realisation : realisation with ideal transformer.2. Cauer realisation : ladder realisation.3. Bott Duffin realisation : with non ideal transformer. Select the answer using the following codes:

• A. 1, 2 and 3
• B. 2 and 3
• C. 1 and 3
• D. 1 and 2