The correct option is
A SQRTP
The first sentence in the sequence should be the one that introduces a new topic. It cannot be a phrase that is an extension or continuation of a topic.S is the first in sequence:S is the only phrase that introduces a topic, that is 'The science of television'.
S is followed by Q: Q directly continues S's point by telling us that the science is based on a delicate system.
Q is followed by R: R continues Q's point by telling us that this system's working does not consist of storing and recording.
R is followed by T: After R tells us how it does not work, T tells us how it does. The words 'it rather' indicate that it is an additional point and was not discussed first. Thus, T follows R.
T is followed by P: P is a direct continuation of the discussion started in T. Thus, it has to come after T.
Thus, the correct sequence is S Q R T P. Hence, B is the correct option.