Which part of a seed allows water to enter before germination?

1. The micropyle is a small opening in the seed coat. 2. Water is absorbed through it, which begins germination. 3. The testa is the hard protective outer layer surrounding the seed, so it keeps water out rather than letting it in. 4. The cotyledon stores food to support germination once it has begun. 5. The plumule and radicle are parts of the embryo: the radicle develops into the root and the plumule into the shoot. _Source: NECTA CSEE 2022 Biology 033, Question 1: Multiple Choice Items, item (v)_