Consider the following three statements and select the correct option stating which one is true (T) and which one is false (F).
(i) Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing nonliving organic molecules (e.g, RNA, protein etc.) and that formation of life was preceded by chemical evolution.
(ii) Based on observations made during a sea voyage around the world. Charles Darwin concluded that existing living forms share similarities to varying degrees only among themselves.
(iii) Evolution by natural selection must have started when cellular forms of life with different metabolic capability originated on Earth.

Options

A. `{:("(i)","(ii)","(iii)"),(F,T,T):}`
B. `{:("(i)","(ii)","(iii)"),(T,F,T):}`
C. `{:("(i)","(ii)","(iii)"),(T,T,F):}`
D. `{:("(i)","(ii)","(iii)"),(F,F,T):}`

Explanation

To determine the truthfulness of the three statements regarding evolution and the origin of life, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Statement (i)**: "Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing nonliving organic molecules (e.g., RNA, protein etc.) and that formation of life was preceded by chemical evolution."
- **Analysis**: This statement is true. Oparin and Haldane indeed proposed the theory of chemical evolution, which suggests that life originated from non-living organic molecules through a series of chemical processes. This theory is widely accepted in the scientific community.
- **Conclusion**: True (T)

2. **Statement (ii)**: "Based on observations made during a sea voyage around the world, Charles Darwin concluded that existing living forms share similarities to varying degrees only among themselves."
- **Analysis**: This statement is false. While Darwin did observe various forms of life during his voyage, he concluded that living forms share similarities not only among themselves but also with extinct forms, indicating a common ancestry. The statement incorrectly limits the similarities to only existing forms.
- **Conclusion**: False (F)

3. **Statement (iii)**: "Evolution by natural selection must have started when cellular forms of life with different metabolic capability originated on Earth."
- **Analysis**: This statement is true. Evolution by natural selection is believed to have begun with the earliest cellular life forms. These cells, having different metabolic capabilities, would have undergone natural selection, leading to the evolution of diverse life forms over time.
- **Conclusion**: True (T)

### Final Summary:
- Statement (i): True (T)
- Statement (ii): False (F)
- Statement (iii): True (T)

### Correct Option:
The correct answer is **Option B**: T, F, T.