Option (d) is correct.

According to the passage, the failure of the debtors to pay loans would have risked the following:

A. Pension funds: Pension funds can be considered as investors, and if the loans go bad, it can have an impact on the funds and the retirement savings of individuals.

B. Investors: Major northern European financial institutions and investors were the ones that had made most of these loans. If the debtors defaulted, the loans on the books of these investors would go bad.

C. Northern European banks: Trillions of dollars in loans on the books of northern European banks would go bad if the debtors defaulted.

Therefore option (d) A, B, and C is correct.

विकल्प (d) सही है।

गद्यांश के अनुसार, ऋण की अदायगी करने में कर्ज़दारों की विफलता ने निम्नलिखित को जोखिम में डाल दिया होता:

A. पेंशन फंड

B. निवेशकों

C. उत्तरी यूरोपीय बैंक के लिए

इसलिए विकल्प (d) A, B और C सही है।