i have to pick from the following

informed consent disclosure
substituted consent

Regaurding the question a minor needs an operation the parent consent to the operation

The question is poorly written and doesn't give enough information. But informed consent is probably the best answer.

Based on the options you provided, it seems like you are referring to the different types of consent in the context of a minor needing an operation and the parent's consent. Let me explain the options to you:

1. Informed consent: Informed consent is a legal and ethical requirement where the patient, or in this case, the parent of the minor, is given all the relevant information about the procedure, its risks, benefits, and alternatives. The parent must fully understand this information before providing consent.

2. Disclosure: Disclosure refers to the provision of detailed information about the procedure, potential risks, benefits, and alternatives to the parent. It is an essential part of the informed consent process.

3. Substituted consent: Substituted consent comes into play when a minor does not have the legal capacity to provide consent. In such cases, the parent or legal guardian provides consent on behalf of the minor.

In the situation you mentioned, where a minor needs an operation, the parent's consent is generally required. The parent would be provided with necessary information about the procedure and its implications. They would then have the responsibility to make an informed decision on behalf of their minor child.

Please note that specific legal and ethical guidelines regarding consent may vary depending on the jurisdiction and the specific circumstances.