Which mathematical operations are crucial for solving word problems?

The correct choice highlights the importance of multiple mathematical operations—addition, subtraction, multiplication, and division—in tackling word problems. Each of these operations serves a distinct purpose and is essential for the various scenarios that can arise in word problems.

Addition is often required when combining quantities, while subtraction is critical for finding differences or determining what remains. Multiplication plays a key role in scenarios involving repeated addition, such as calculating totals over a given number of groups, and division is necessary when distributing quantities or determining how many times one number fits into another.

Employing a variety of these operations allows for a comprehensive approach to problem-solving. Since word problems often present real-world situations that can involve different relationships between numbers, having the ability to use all four operations is crucial for arriving at accurate solutions. The other options suggest limiting the operations to either a subset or a single operation, which would not adequately cover the diversity of problems one might encounter. Thus, the inclusion of all four basic arithmetic operations is essential for solving word problems effectively.