In the sentence "My Parents/1 are Indians but/2 I am/3 born in Sydney/4.", we need to identify which underlined parts violate the rules of correct English. Let's examine each part:
- Part 1: "My Parents"
The word "Parents" should be capitalized only at the beginning of a sentence or if it were a proper noun. Here, it's used as a common noun, so it should be lowercase. The correct form is "my parents". This violates the rule. - Part 2: "but"
The conjunction "but" is used correctly to contrast "My parents are Indians" with "I am born in Sydney". There is no violation here. - Part 3: "I am"
In the context of this sentence, the phrase should be "I was born in Sydney" instead of "I am born in Sydney". The present tense "am" is incorrectly used here for a past event. This violates the rule. - Part 4: "born in Sydney"
This part is correctly structured as it describes the location of birth. There is no violation here.
Based on this analysis, the underlined parts that violate correct English are Part 1 and Part 3. Therefore, the correct option is 1 and 3.