निम्नलिखित में से कौन सा इम्युनोग्लोबुलिन मुख्य रूप से एलर्जी प्रतिक्रियाओं में शामिल होता है?

Which of the following statements concerning human antibodies are correct? 1. IgG is the most abundant antibody in blood circulation. 2. IgE is associated with allergic reactions. 3. IgA is mainly present in secretions like saliva and breast milk. Select the correct answer using the options given below: