Order the four language skills by typical acquisition in communication: Listening → Speaking → Reading → Writing. Choose the best matching sequence using the given labels (1. Reading 2. Listening 3. Writing 4. Speaking).

Introduction / Context:
This sequencing problem uses well-known pedagogy from language learning. In natural acquisition and in many instructional frameworks, the skills develop in the order Listening → Speaking → Reading → Writing (often abbreviated LSRW). The task is to map this canonical order to the numeric labels provided.

Given Data / Assumptions:

• 1 = Reading
• 2 = Listening
• 3 = Writing
• 4 = Speaking

Concept / Approach:
Translate LSRW into the index set: Listening (2) → Speaking (4) → Reading (1) → Writing (3). This yields the choice (2, 4, 1, 3). The logic mirrors both developmental patterns in children and common ESL/EFL teaching sequences, where receptive skills precede productive skills, and oral modalities precede literacy modalities.

Step-by-Step Solution:

Verification / Alternative check:
Many curricula explicitly adopt LSRW ordering. Reversals (e.g., writing before speaking) are atypical in natural acquisition and would not match the majority of frameworks.

Why Other Options Are Wrong:

• 4,2,1,3: Starts with Speaking before Listening—counter to standard acquisition.
• 2,4,3,1: Places Writing before Reading—unusual in foundational learning.
• Other permutations similarly break the LSRW principle.

Common Pitfalls:
Confusing classroom assessment order (which may test reading/writing first) with developmental acquisition order.

Final Answer:
2, 4, 1, 3