Question

Arrange the following functions in a sequential order of-Potassium, Calcium, Iron and Copper respectively-
A. Needed for Iron metabolism
B. Needed for Nerve transmission
C. Carries oxygen to every cell of the body
D. Important for Healthy Teeth
Choose the correct answer from the options given below:

• A. B, D, C, A
• B. A, B, D, C
• C. B, A, D, C
• D. C, B, D, A

Hint:

Potassium for nerves, calcium for teeth, iron for oxygen, copper for iron metabolism.

Answer 1

The Correct Option is A

Step 1: Recall the facts:
Match one mineral at a time: potassium with nerves, calcium with teeth, iron with oxygen, copper with iron use. Then read the letters in order.

Step 2: Match the facts with the options:
Option (1): Potassium gives B, calcium gives D, iron gives C and copper gives A. Reading them in order gives B, D, C, A, which is exactly this option.
Option (2): This option starts with A, but potassium is not linked to iron metabolism, so it fails.
Option (3): This option gives A for calcium, but calcium is for bones and teeth, so it fails.
Option (4): This option starts with C, but oxygen carrying is not a potassium job, so it fails.

Step 3: Decide:
Only the first option lists B, D, C, A, which agrees with the matching worked out above.

Final Answer:
Option (1) is correct. \[\boxed{\text{B, D, C, A}}\]