The name of a person in Column 1 is to be matched with the test mentioned in Column 2.

Column 1	Column 2
(I) Menard	(P) Dilatometer test
(II) Marchetti	(Q) Pressuremeter test
(III) Casagrande	(R) Compaction test
(IV) Proctor	(S) Liquid limit test

Option giving the CORRECT match between Column 1 and Column 2 is:

The correct option is: (I)- (Q) ; (II)- (P) ; (III)- (S) ; (IV)- (R).

Let us break down the contributions of each individual listed in Column 1 to understand their match with the geotechnical tests in Column 2:

1. (I) Menard matches with (Q) Pressuremeter test:
Louis Menard, a French engineer, developed the pressuremeter test (PMT) in 1955. The pressuremeter is an in-situ testing device inserted into a borehole, where a cylindrical probe is inflated to measure the stress-deformation characteristics of the surrounding soil.

2. (II) Marchetti matches with (P) Dilatometer test:
Silvano Marchetti introduced the Flat Dilatometer Test (DMT) in 1980. The test uses a flat, spade-shaped probe with a circular steel membrane on one side, which is pushed into the ground to determine soil stiffness, lateral stress coefficient, and shear strength.

3. (III) Casagrande matches with (S) Liquid limit test:
Arthur Casagrande designed the standardized liquid limit apparatus (known as the Casagrande cup) and the accompanying test procedure. This test determines the moisture content at which a soil transitions from a plastic state to a liquid state.

4. (IV) Proctor matches with (R) Compaction test:
Ralph R. Proctor established the principles of soil compaction in 1933, showing that dry density depends on moisture content for a given compaction effort. The Proctor compaction test is a laboratory method used to determine the optimum moisture content and maximum dry density of soils.

Thus, matching the pairs correctly yields:
(I) → (Q)
(II) → (P)
(III) → (S)
(IV) → (R)