Read the following statements: Assertion (A) and Reason (R). Choose the correct alternative from those given below:
Assertion (A): The equilibrium level of income is determined, when ex-ante spending and ex-ante output are equal.
Reason (R): The equilibrium level of income may or may not be the same as the full employment level of output.
Assertion (A): This is true because the equilibrium level of income is achieved when planned (ex-ante) spending equals planned (ex-ante) output, ensuring no unintended inventory changes.
Reason (R): This is also true because the equilibrium level of income is not necessarily the same as the full employment output. It can occur below or above the full employment level depending on aggregate demand.
Conclusion: Though both statements are true, Reason (R) does not fully explain Assertion (A), as equilibrium income is based on aggregate demand and not necessarily full employment.
Read the following text carefully from ‘The Economic Times’ dated 8th June, 2023: “The Reserve Bank of India’s (RBI’s) rate-setting panel unanimously decided to keep the benchmark lending rate unchanged at 6.5%. The committee voted to remain focused on the withdrawal of accommodating monetary policy.” On the basis of the given text and common understanding, answer the following questions: Identify and discuss the economic issue indicated in the above text.
For a hypothetical economy, assume the government increased infrastructural investment by ₹10,000 crore. 80% of additional income is consumed in the economy. Estimate the increase in income and the corresponding increase in consumption expenditure in the economy.
Study the given molecular structure of double-stranded polynucleotide chain of DNA and answer the questions that follow. 
(a) How many phosphodiester bonds are present in the given double-stranded polynucleotide chain?
(b) How many base pairs are there in each helical turn of double helix structure of DNA? Also write the distance between a base pair in a helix.
(c) In addition to H-bonds, what confers additional stability to the helical structure of DNA?

Draw a rough sketch for the curve $y = 2 + |x + 1|$. Using integration, find the area of the region bounded by the curve $y = 2 + |x + 1|$, $x = -4$, $x = 3$, and $y = 0$.