The nascent field of astrobiology seeks to understand the origins, evolution, and distribution of life in the universe. While many of its inquiries remain speculative due to the lack of direct evidence from extraterrestrial sources, the discipline relies heavily on established principles of biology, chemistry, and physics. Researchers in astrobiology often employ remote sensing technologies and laboratory simulations to test hypotheses about habitable environments and potential biosignatures beyond Earth. This interdisciplinary approach is crucial, as the search for life requires a comprehensive understanding of both terrestrial life and the conditions prevalent in various cosmic settings. Consider each of the three choices separately and select all that apply. Which of the following statements can be inferred from the passage? I. Astrobiology primarily focuses on theoretical speculation rather than empirical evidence. II. Astrobiologists use methods from multiple scientific fields. III. The search for extraterrestrial life is hindered by a scarcity of direct observational data.

1. AII and III only
2. BI only
3. CIII only
4. DII only