In each of the questions given below four words are given in bold. These four words may or may not be in their correct position. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of the words that should interchange. If the sentence is correct as it is then, select option “No interchange required” as your choice.

There are some careers (A) where you can’t afford (B) to make even the most disastrous (C) mistake without infinitesimal (D) consequences.

The correct option is C-D.

Step-by-step Explanation:

Let's analyze the given sentence and the contextual meaning of the bold words in their current positions:

"There are some careers (A) where you can’t afford (B) to make even the most disastrous (C) mistake without infinitesimal (D) consequences."

1. careers (A) and afford (B): These words are placed correctly. "Careers" fits as the noun subject, and "afford to make" is a standard grammatically correct verb phrase expressing risk management.

2. disastrous (C) and infinitesimal (D):
- "Infinitesimal" means extremely small or negligible.
- "Disastrous" means causing great damage or distress.
Contextually, making even a tiny or negligible mistake ("infinitesimal mistake") leading to huge or catastrophic results ("disastrous consequences") makes logical sense. Saying a "disastrous mistake" leads to "infinitesimal consequences" is contradictory because a disastrous mistake would inherently carry major, severe consequences, not tiny ones.

Therefore, interchanging C and D restores the intended meaning:

"There are some careers (A) where you can’t afford (B) to make even the most infinitesimal (C) mistake without disastrous (D) consequences."

Thus, the correct combination of words to interchange is C-D.