egmat
Hi @archit143,
D) javelin's sharp point makes it obviously more dangerous than the discus, even though: Incorrect.
Notice the use of “it” in this choice. This pronoun stands for “sharp point”. It cannot refer to “javelin’s” because this entity is a modifier, an adjective. So “it” stands for “sharp point”. Now per this choice, “sharp point” has been compared to “discus”. These two entities are not comparable. This illogical comparison makes this choice incorrect.
Also the placement of “more” is not correct in this choice. Read my previous post on the usage of “more” in this sentence.
“however” also starts fresh sentences. We form complete sentences with “however”. This is the reason why use of semicolon is not incorrect in some of the answer choices, including the correct one.
Hope this helps.

Thanks.
Shraddha
@Shraddha-Applying the same logic on other SC question:
Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making it one of the healthiest widely available fruits on the market.
1.Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making it one of the healthiest widely available fruits
2.Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than almost any other fruit, making them one of the healthiest fruits that is widely available
3.Recent studies have shown that the antioxidants found in the acai berry boost immune cell function more effectively than those in almost any other fruit, which makes the acai berry one of the healthiest widely available fruits
4.Because the acai berry’s antioxidants boost immune cell function more effectively than those in almost any other fruit, it is one of the healthiest fruits that is widely available
5.Because the acai berry’s antioxidants boost immune cell function more effectively than the antioxidants found in almost any other fruit, they are one of the healthiest widely available fruits
The correct answer is 4.
Here usage of 'It' should be wrong since it is referring to antioxidants.