¿Qué oportunidades consideras que encuentra la familia Christiansen para emprender y ampliar su negocio a lo largo de la historia de LEGO?

Unclear question. The clearer reads;

What opportunities do you think the Christiansen family finds to start and expand their business throughout LEGO history?

Explanation:

Opportunities are best known as favourable business circumstances or situations that can be found.

Remember, any business expansion was as a result of the owners decisive action to grab (take advantage of) opportunities in the environment.

For Example, a business person may notice people in an area dread the rainy season because they are often soaked in rain because the idea of using umbrellas never occurred to them. The solution or opportunity is to sell umbrellas to this people throughout the rainy season.

i guess you could put raise the economic balance

the answer is     d. in our global economy, most job growth will be in services, but manufacturing jobs will exist, too.