Correct answer: (c) Both 1 and 2
Explanation
- A
1 only
(a) 1 only. Targeted drug delivery via nanoparticles is a real nanomedicine use, but gene therapy (vectors, nano-carriers for nucleic acids) is also a recognised contribution. 1 only is incomplete.
- B
2 only
(b) 2 only. Gene-therapy applications exist, yet dropping targeted delivery ignores the most cited health use. 2 only is too narrow.
- C
Both 1 and 2
(c) Both 1 and 2. Nanocarriers can deliver drugs to specific tissues, and nanotechnology is used in gene-delivery systems. Both statements are correct; that is the official key.
- D
Neither 1 nor 2
(d) Neither 1 nor 2. Both statements are accepted applications. Neither-nor is wrong.
Summary. Official key is (c) Both 1 and 2. Nanotechnology enables targeted drug delivery and contributes to gene-therapy delivery systems. Neither claim is speculative on this paper. The keyed answer is both statements.
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