The well known motto \"Be prepared\" is associated with which of the following youth or social organisations?

Introduction / Context:
Mottos and slogans of important organisations are favourite topics in general knowledge examinations. The phrase Be prepared is internationally recognised and is strongly linked to a particular youth movement that promotes discipline, outdoor skills and community service. This question evaluates whether the candidate can correctly connect that motto to the appropriate organisation from among several well known bodies.

Given Data / Assumptions:

- The motto given is Be prepared. - Four organisations are listed: The Scout movement, National Cadet Corps, Red Cross Society and World Health Organization. - Only one of these officially uses Be prepared as its motto. - The question does not require dates or founders, only the correct association.

Concept / Approach:
Be prepared is the historic and globally accepted motto of the Scout movement founded by Robert Baden Powell. The idea is that Scouts should always be ready in mind and body to do their duty and to help others. The other organisations listed have different aims and slogans. Therefore, recalling basic information about Scouting and its motto directly leads to the correct answer.

Step-by-Step Solution:
1. Recognise that the phrase Be prepared is commonly taught to school students in the context of Scouts and Guides. 2. Recall that the Scout movement encourages readiness to serve, to face challenges and to respond to emergencies. 3. The founder Robert Baden Powell framed Be prepared as the central guiding motto for Scouts around the world. 4. Among the listed options, The Scout movement is the only one directly connected to this phrase. 5. Therefore, The Scout movement must be selected as the correct answer.

Verification / Alternative check:
Verification can be done from school textbooks, Scout handbooks or websites of organisations such as Bharat Scouts and Guides. All of them clearly refer to Be prepared as the official motto of Scouts. In contrast, National Cadet Corps uses Unity and discipline as its motto, the Red Cross Society uses a different emblem based identity, and the World Health Organization focuses on health related objectives without this phrase. This clear separation of mottos confirms that only the Scout movement option fits the question.

Why Other Options Are Wrong:
National Cadet Corps is a tri service youth organisation in India, and its motto is Unity and discipline, not Be prepared. The Red Cross Society is a humanitarian organisation whose symbol is a red cross on a white background and does not use this particular motto. World Health Organization is an agency of the United Nations concerned with global public health and has its own emblem and mission statements, not the Scout motto. Hence all three alternative options are incorrect associations for Be prepared.

Common Pitfalls:
Sometimes candidates loosely remember that both Scouts and National Cadet Corps involve uniforms and camps, and therefore may confuse their mottos. Another pitfall is to answer based solely on guessing that an international sounding motto must belong to a global body like the World Health Organization. To avoid such errors, it is important to memorise at least one key feature of each organisation: Scout movement with Be prepared, National Cadet Corps with Unity and discipline, and Red Cross with humanitarian aid and the red cross emblem.

Final Answer:
The famous motto Be prepared is officially associated with The Scout movement.