The below question contains a paragraph of 6 sentences. The first and the sixth sentences are given in the beginning and end and numbered 1 and 6 respectively. The four sentences in the middle are jumbled and labelled P, Q, R and S. Identify the proper order of these four sentences and mark the correct option.1. Machines have parts made of iron.P. They must be painted or chrome plated.Q. Some parts rub against each other.R. Iron gets rusted.S. They must be lubricated with oil or grease.6. When the machine is not used, it should be covered.

The below question contains a paragraph of 6 sentences. The first and

1.	The below question contains a paragraph of 6 sentences. The first and the sixth sentences are given in the beginning and end and numbered 1 and 6 respectively. The four sentences in the middle are jumbled and labelled P, Q, R and S. Identify the proper order of these four sentences and mark the correct option.1. Machines have parts made of iron.P. They must be painted or chrome plated.Q. Some parts rub against each other.R. Iron gets rusted.S. They must be lubricated with oil or grease.6. When the machine is not used, it should be covered.
A.	P R Q S
B.	Q R P S
C.	Q S R P
D.	R P Q S
Answer» E.