Explanation:

Let's break down the jumbled parts of the sentence to find the correct order:

- S: the pandemic year was a challenge for the university

- Q: but it took it in its stride, pulling through enough

- R: innovations to ensure that the

- P: learning-teaching process continued seamlessly

Now, let's evaluate the given options:

- Option 1: PQRS

- This arrangement doesn't logically connect the parts to form a coherent sentence.

- Option 2: QPRS

- This arrangement places "but" at the start, which disrupts the flow without an initial statement.

- Option 3: SQRP

- Starts with the introduction of the pandemic challenge, followed by how the university overcame it, which fits naturally.

- Option 4: SPQR

- The transition does not make a coherent narrative.

The correct sequence is SQRP, as it logically discusses the challenge faced by universities during the pandemic and how they adapted.

Correct Answer: Option 3 - SQRP