Correct Answer: (c) with; for
Solution:For the given blanks, the appropriate prepositions are 'with' and 'for'.
• Here, the preposition 'with' has been used for considering one fact in relation to another.
• The complete sentence would be: Now, a 50-paise coin is a numismatic slice of the past which memorises the people who experienced the annapaise age.
Hence, the correct answer is option (c).