Each of the digits in the number 7214365 is arranged in the ascending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?

Given: 7214365

Arrange the digits in ascending order (smallest to largest).​

Unchanged positions: 2, 4, 6

Total = 3 digits

So, the position(s) of three digits will remain unchanged as compared to that in the original number.

Thus, correct option is (d).