SI : When a lamb is bom its mother may die. S6 : If a means of overcoming this natural tendency is found, the lives of millions of lambs can be saved. P : Thus there will nearly always be both motherless lambs and sheep without lambs. Q : However a sheep which has lost its own lamb will not feed or look after a motherless lamb. R : At the same time some new bom lambs are too weak to live. S : This happens in large flocks where many sheep give birth to lambs at the same time. The proper sequence should be:
- AP Q S R
- BR P Q S
- CS R Q P
- DS R P Q
Explanation
The proper sequence is S-R-P-Q, option (d). A lamb’s mother may die (S1). This happens in large flocks where many sheep lamb at the same time (S). Some newborn lambs are too weak to live (R). So there will nearly always be motherless lambs and lamb-less sheep (P). But a ewe that lost her own lamb will not foster a motherless one (Q), and overcoming this tendency would save millions of lambs (S6).