Read the following excerpt from a scientific article about language acquisition and answer the question below:

"The Critical Period Hypothesis (CPH) posits that there is a biologically determined window of opportunity for language acquisition, after which it becomes significantly more difficult to achieve native-like proficiency. This hypothesis, first proposed by Lenneberg in 1967, suggests that the brain's plasticity for language learning declines after puberty. However, recent studies have challenged this view, showing that adults can attain high levels of proficiency through intensive immersion and explicit instruction, though they may retain subtle accents or grammatical inconsistencies. The debate centers on whether these limitations are due to neurological constraints or factors like motivation, exposure, and learning strategies. For instance, research on second language phonology indicates that while children often acquire native-like pronunciation effortlessly, adults typically require targeted phonetic training to overcome interference from their first language."

Based on the text, analyze the following statements:

I. The Critical Period Hypothesis asserts that language acquisition is impossible after puberty.

II. Recent evidence completely disproves the Critical Period Hypothesis, showing no age-related limitations in language learning.

III. Adults may achieve high proficiency in a second language but might struggle with aspects like pronunciation without specific training.

IV. The debate over language acquisition involves both neurological and psychological factors.

Considering the text and the analysis required, which option correctly identifies the true (T) and false (F) statements?