4386: A box contains 5 sets of balls while there are 3 bails in each set. Each set of balls has one colour which is different from every other set. What is the least number of balls that must be removed from the box in order to claim with certainty that a pair of bails of the same colour has been removed?

(A) 6
(B) 7
(C) 8
(D) 9
4387: Consider the following statements:

The Government of India Act, 1935 provided for

1. The provincial autonomy.
2. The establishment of Federal court.
3. All India Federation at the centre.

Which of the following statements given above is/are correct?

(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3
4388: With reference to Indian satellites and their launchers, consider the following statements:

1. All the INSAT-series of satellites were launched abroad
2. PSLVs were used to launch IRS-series of satellites
3. India used the indigenously built cryogenic engines for the first time for powering the third stage of GSLV
4. GSAT, launched in the year 2001, has payloads to demonstrate digital broadcasts and internet services

Which of these statements are correct?
(a) 1, 2, 3 and 4
(b) 2, 3 and 4
(c) 1, 2 and 4
(d) 1 and 3
4389: The Parliament can make any law for whole or any part of India for implementing international treaties

(a) with the consent of all the States

(b) with the consent of the majority of States

(c) with the consent of the States concerned

(d) without the consent of any State
4390: The characteristic feature of virus is that

(a) It is made of fats.

(b) It multiplies only on dead animals.

(c) It multiplies only on hosts.

(d) It lacks chlorophyll.