Regarding glucose control. Most patients should aim for an HbA1c < 6.5%. HbA1c reflects the glucose values of the last 3 weeks. HbA1c goals should be individualised. Random and fasting goals should be the same for all patients.

C. HbA1c goals should be individualised

• A. Most patients should aim for an HbA1c < 6.5%: Lengo la HbA1c la chini ya 6.5% ni kali sana na linaweza kuwa linafaa kwa wagonjwa wachache tu, kama vile wale walio na ugonjwa wa kisukari mpya na bila matatizo mengine. Kwa wagonjwa wengi, lengo la kawaida ni chini ya 7%.
• B. HbA1c reflects the glucose values of the last 3 weeks: HbA1c huakisi viwango vya wastani vya glukosi katika damu kwa kipindi cha miezi 2 hadi 3 iliyopita, si wiki 3 tu.
• C. HbA1c goals should be individualised: Malengo ya HbA1c yanapaswa kubinafsishwa kulingana na umri wa mgonjwa, muda wa ugonjwa wa kisukari, uwepo wa magonjwa mengine, hatari ya hypoglycemia, na mambo mengine. Hii ni kanuni muhimu katika usimamizi wa kisukari.
• D. Random and fasting goals should be the same for all patients: Malengo ya glukosi ya damu (kama vile glukosi ya kufunga na glukosi ya nasibu) hutofautiana na yanapaswa kubinafsishwa kwa kila mgonjwa. Pia, malengo ya glukosi ya kufunga na ya nasibu si sawa.

Kwa hiyo, chaguo sahihi ni C.

The correct option is $\boxed{\text{C}}$.